I want to swap out my boats Fortrex for a Terrova. It was only held in by six screw inserts. 12-08-2011, 12:02 PM #7: beachplumber. We typically recommend a minimum of two drainage holes. It left a very small hole. Join Date: Feb 2010. home improvement and repair website. Definitely no cracking of the gelcoat then. Installation of Inlay Bathtub Repair System.We then install a custom-fabricated inlay that is adhered to the floor of the bathtub. Use a hole saw to drill holes through the fiberglass or acrylic surface. $7.28 $ 7. Apply another coat of epoxy on top, let it cure and sand it to even it out. Since I was trying to repair a 1/8" wall, I thought 3 layers of fiberglass material would be appropriate.A sailor friend of mine informed me that I would need to glass in a large patch first, and sequentially step down to a patch the size of the hole. If your tub has a tint, you have to paint the repaired area. Wipe excess epoxy film on the surface. 2020 Boat of the Year: Axopar 28 Cabin . AUTHOR:  Allison Crecelius Lay in one 5×5” 6 oz. In stock and ready to ship. Now is the best time to clean and disinfect the tub. Diamond Drill Bit Glass drill bit for Tile Marble Granite Fiberglass Ceramic Tool Drill Bit Set 5 Pack | 5/32” – ½” 4.0 out of 5 stars 331. Use a wet/dry vacuum to clear away any debris. A good rule of thumb for the number of drainage holes needed is 3-4 holes for 36 inch planters, and 4-6 holes for 46 inch planters. – Michael Karas ♦ Jun 16 '16 at 3:28 Ok you have a metal or cast tub, it takes a bit more pressure and time if the drill bit is sharp. Drill a small pilot hole in your fiberglass. Questions of a Do It Yourself nature should be ... Master the art of drilling into fiberglass … But my tub only has three holes. So… in thinking about twist bits, spur point bits, etc- I’m thinking a hole saw will make the cleanest hole. One key difference between indoor and outdoor fiberglass planters is whether or not they have drainage holes. If it’s a steel or cast-iron tub and it has no holes, or they don’t align with the studs, drive the nails above the top of the flange so … Next. How to Drill Into a Fiberglass Shower Step 1. Suitable for cars, tubs, sinks, kitchen, fiberglass … This gives a solid surface and a completely protected core. Then rinse the tub with water and allow the surface to dry. Light pressure is applied to the bit, creating a smooth hole without distorting the tub walls. Master the art of drilling into fiberglass and add any accessory. Step 3. SpatiallyAware Lifer. suggestions. problems contact webmaster@doityourself.com. Discussion in 'Shower & Bathtub Forum & Blog' started by katman104, Aug 24, 2007. katman104 New Member. Is there anything special about drilling into fiberglass? What will happen, the drill will drop more rapidly through faster than you can react and dash the cutting teeth against the finish tub. Is there any way I can repair this myself? Allow to dry, then brush the area with a paintbrush to remove sanding residue. Stand the fiberglass surround on top of the tub. Choose from our selection of fiberglass-cutting drill bits, including over 1,400 products in a wide range of styles and sizes. All Rights Reserved. I read some things like, you need to champher the hole, drill backwards first, drill with a uni-bit, use masking tape over the hole before you drill it, and such things to avoid cracking the fiberglass. Fastening towel bars, shelves or hooks to a fiberglass or plastic shower surround can be tricky. Using a hole saw, drill the hole for the fitting. I have a fiberglass shower that the floor cracked as my son was taking a sh... Our daughter called us last night and said water was coming into her baseme... Hi guys, so I just got done shimming a jacuzzi that started making noise. On Board With: Rusty Van Ranch and the Tugski Boat. View our Privacy Policy here. Use a sponge to clean the tub of grime and soap residue. Use 200-grit sandpaper to flatten the area and level the epoxy filler to the tub's surface. Hole going right through fiberglass into the boat: First, examine the hole and look for cracks and chips extending out from the hole. Boating’s Boats of the Year 2000-2020. However, if you ordered a sealed planter and now need it to have drainage holes, here are step-by-step directions on how to drill holes in fiberglass planters. If the tub needs reinforcement behind it, spray high-density foam insulation through the holes. Arrives before Christmas. Place the drill bit on the mark, and gently let the drill carve into the fiberglass until you’ve reached through the other side. When she is not researching new plants to add to her growing collection, she enjoys going on motorcycle rides and watching road-trip movies. Copyright© First, we drill holes in the bottom of the bathtub and inject a highly-dense expanding foam that fills in the void between the bottom of the bathtub and subfloor. Sometimes your kid's elbow goes through the fiberglass tub. Create a detergent solution. Apply more epoxy on top of the fiberglass fabric until it becomes invisible. Best Seller in Hole Saw Sets & Kits. Answered. For any hole size larger than 0.5cm I drill a small hole then enlarge it with a dremmel sander rather than a big drill. Five Years of Volvo Penta’s Forward Drive. Use a ½ inch spade drill bit for smaller planter sizes. I have a tub that’s blistering quite a... We recently removed a Comcast cable that went through an exterior wall and ... How to Repair Cracks in Fiberglass Entry... How to Repair Cracks in Fiberglass Entry Doors. The problem is, those type of faucets usually require four holes. This will result in a cleaner hull when the hole saw finishes the cut. Now that you've got a hole that extends all the way through into the bilge of the boat, you can score the fiberglass on the inside to prevent chipping when the hole saw bit finished the cut. Step 2. Allow the epoxy to cure. Cutting a perfectly round hole in a piece of finished fiberglass without damaging the gel-coated surface around the hole takes careful preparation and the right cutting tools.The thickness of the fiberglass will determine which cutting tool to use. Gear. Apply the mixed epoxy resin on the hole halfway full, then insert the fiberglass fabric to patch the hole and reinforce the resin. Mark where you’d like drainage holes in the planter interior. The hole will need to be 3/4" or 7/8" depending on the discharge fitting I decide on. The following list will have to be varied to suit you individual application, but this will give you an idea of what I do. For really big holes like the one I had to make for the marker light, I drilled out the hole undersize with a hole saw, then again, used the dremmel with a sanding wheel to get to the final size. 3pcs 4in/10cmDark Brown Drill Cleaning Sponge. August 11, 2011. Cut a fiberglass fabric according to the width of the hole. You want it to be a little snug and not loose, remove the plug and add more sheets of 6 oz. submitted to our "DoItYourself.com Community Forums". How do you fill in screw holes in a fiberglass tub/shower? One or two sheets of fiberglass with a flexible epoxy like the one you linked will still be reasonably compliant. Jump to Latest Follow 1 - 20 of 31 Posts. These holes can be patched up easily with epoxy and fiberglass fabric, and can be done by yourself. Gelcoat is a thin, brittle coating, not unlike an eggshell. holes. It looks similar to a car's bumper when it's been hit in the corner and cracked open with hairline cracks coming from the edges. Wipe … Choose from our selection of fiberglass-cutting drill bits, including over 1,400 products in a wide range of styles and sizes. tape over the core and backfill with thickened epoxy. Gear. Lastly, dress up the hole. This will help assure that the patch adheres completely to cover the hole in the fiberglass . Determine the extent of damage. Apply wax to the entire tub to help repel soap residue. © 2020 NewPro Containers. Tub Tile and Shower Repair Kit (Color Match)- Fiberglass Repair Kit Porcelain Repair Kit for Tubs Toilet Fiberglass Ceramic Crack Drill Holes Suitable for Multiple Colors (3.5oz) $15.99 $ 15 . For narrow yet deep holes, epoxy resin is enough to repair the damage. Cut a fiberglass fabric according to the width of the hole. Lay in one 5×5” 6 oz. If you want to install a new fiberglass shower or change the plumbing in your existing shower, you may need to cut a hole in the shower wall. Making sure to include the cracked spots. Make a pilot hole with a 3/16 inch drill bit. Follow the step-by-step guide on how to repair holes in your tub. I read some things like, you need to champher the hole, drill backwards first, drill with a uni-bit, use masking tape over the hole before you drill it, and such things to avoid cracking the fiberglass. Make sure the bathroom is well-ventilated and wear a respirator mask, gloves (and when sanding, safety glasses) to stay safe. After you mark the hole locations (Photo 1), drill 3/16-in. Use bi-metal hole saw bits for fiberglass showers and carbide bits for tile. I want to swap out my boats Fortrex for a Terrova. 4. Carefully set tub into place against the wall studs. By Jeff Hemmel. It is best to use in wider holes. Step 1 Measure the centers of the shower faucet valve body from the subfloor to the center height of the valve body and the side centers from the shower back wall with a tape measure. Page 1 of 1 Start over Page 1 of 1 . Boats. In stock and ready to ship. Step 2: Apply Painters' Tape. What type drill bit do I use to cut a 3 1/2 inch hole in a fiberglass enclosure and what special precautions to use to keep from chipping the gel-coat? For the faucet valve hole, select a hole saw bit that is large enough to accommodate the trim screws as well as the shower valve (the faucet escutcheon plate will cover the slightly larger hole). Drilling drainage holes in a small number of fiberglass planters likely won’t take up too much time. Use a compass and a grease pencil to trace out the correct size circle. Keep an even forward pressure when the hole saw engages the fiberglass surface. For example, though we recommend 4-6 drainage holes for a 46 inch planter, it might not be feasible to include that many drainage holes in a tall, skinny 46 inch planter. Place planter upright on a flat surface, and ensure the surface where you are drilling is protected. To do this start from inside the bilge compartment and insert the hole saw bit into the hole you drilled in the previous step. Location: Outer Bank N.C. Posts: 663 My Photos. I suspect that the ½" hole prevents you from using the center drill in the hole saw as a guide. Website operating Secure the flange to the studs by driving 1-inch galvanized roofing nails through the holes in the flange. Allison is a budding plant person looking to share what she learns from horticulture and other subject matter experts. However, consider the overall planter width and height before drilling. (My son slipped and his heel went through - but he's okay!) NewPro Blog provides you with information ranging from pest control to marketing your company via social media. Again referring to your instructions for final sizing. Holes drilled in the tub rim are 1". Drill holes in the surround panel using a drill and hole saw. 1 inch spade drill bit; Wet/Dry Vacuum; How to drill holes in fiberglass planters: Place planter upright on a flat surface, and ensure the surface where you are drilling is protected. For a clean, chip-free hole, use a brad point bit. Drilling Holes in fiberglass Tub and Shower. The epoxy is opaque white in color and matches most white tubs. Start the drill and gently push forward, allowing the drill bit to cut into the material. Apply the mixed epoxy resin on the hole halfway full, then insert the fiberglass fabric to patch the hole and reinforce the resin. Mix the fiberglass epoxy resin using the proportions that the manufacturer recommends. How many layers of fiberglass cloth you use depends on how thick your fiberglass shell is. Start the drill and gently push forward, allowing the drill bit to cut into the material. Typically, the overflow hole is … Strip the hole area with a stripping agent. Mark the hole positions and drill 3/8-in. Latest. I have a 2" hole in the side of my fiberglass tub. 28. Fiberglass Bathtub Hole Repair: A DIY Guide Step 1: Clean the Area to Be Repaired. The method I use, which works about 99.9% of the time is to put the drill in reverse, drill … For a cleaner cut, drill from the inside out, making sure the cover plate will be large enough to cover the hole. Mix oxygen bleach with water in a 50:50 ratio and wipe it on the tub using a sponge. Drilling Holes In Your Hull. I may have to drill 4 new holes. PERFECT FIT!!! Use a brass screw for the toggle bolt rather than steel to avoid rust. A flat surface will help stabilize the wall while you’re cutting. Fiberglass is harder and stronger than wood but can just as easily be drilled into using wood drill bits. Latest. After marking your interior drainage hole locations, make sure that any holes drilled will not go through the “feet” of the planter. Use a measuring tape to space the holes you need and place them according to the project you are completing. However, the total number of needed drainage holes will vary based on the size of the planter. Fiberglass is a fiber-reinforced polymer that essentially is a plastic body reinforced with glass fibers, hence the name fiberglass. Answer + 8. It may crack. Let the drill bit do all the work. Boats. Now is the best time to clean and disinfect the tub. I drill 1/2 way thru from the outside, then move the drill to the inside of the tube and finish the hole inside-out. Boats. CATEGORIES:  Operations. To drill a hole in a cored boat you need to first protect the core. Get it as soon as Fri, Dec 18. To ensure our content is always up-to-date with current information, best practices, and professional advice, articles are routinely reviewed by industry experts with years of hands-on experience. Hello, Well here I am with another question. More How To. No tearing this way, and it is pretty quick. You could also get a tub spout that has a port on it for a handshower and you don't have to drill a hole. Drill 1/4-inch holes in a 1-foot square around the damage, being careful to avoid drilling all the way through. Create a detergent solution. Mark where you’d like drainage holes in the planter interior. Keep an even forward pressure when the hole saw engages the fiberglass surface. How to drill holes in fiberglass planters: Place planter upright on a flat surface, and ensure the surface where you are drilling is protected. What is the best way to drill a hole on a fiberglass tub? Do not flip the planter upside-down to drill holes, especially if it is painted as it might damage the finish. I want to remove the skiding glass doors on my tub/shower combination to make it more handicap accessible for my husband and allow me to use a transfer chair. fiberglass sheet at a time. Do not force the fiberglass harder. Mark an X over spots to drill, using a china marker. DoItYourself.com®, founded in 1995, is the leading independent Drill Drill bit that matches your dowel Saw Hammer Glue Dowel (either same size or bigger than the hole you are plugging) - make sure to match the parent material, e.g. Pine dowel for pine, oak dowel for oak wood. Epoxy resin usually takes 24 hours to fully cure, make sure no one touches it during the curing process. Tips for Techs: 7 Ways to Make Plant Maintenance More Efficient, Choosing the Right Plant Containers for Your Client’s Brand. Use a drill and hole saw to cut holes through the fiberglass tub surround for the shower valve and tub spout. fiberglass as needed until it is snug. It's important to remove any residue from soap, hair products or bath oils. Transfer those marks to the plumbing wall and drill a pilot hole as a guide. Use a drill and hole saw to cut holes through the fiberglass tub surround for the shower valve and tub spout. More How To. I may have to drill 4 new holes. Step 8: Drill of the pilot hole-Take the drill machine again and put it to the stud. After removal and cleaning off the gunk, there were three small holes on each side in the fiberglass unit. Removed a glass door enclosure from a tub. Now, place the pilot hole on the stud and the 2-inch hole in the fiberglass. Hold the center 1/4-inch drill bit of the hole saw perpendicular to the shower wall over the previously drilled pilot holes. Her experience in PR and marketing has given her the skills to distill key facts and advice clearly and concisely across various platforms and mediums. Do not flip the planter upside-down to drill holes, especially if it is painted as it might damage the finish. Push the filler plug into the hole. Use a thinner applicator to push the epoxy further to the bottom and to fill the hole with epoxy completely. We welcome your comments and 2 Drill a hole into the center of the circle with a 1/8-inch drill bit. Porcelain Repair Kit, Fiberglass Tub Repair Kit for Shower White Tubs, Tile Ceramic Toilet Stone Chips Scraps Drill Holes Repair, Tub and Tile Refinishing Kit Joint or Installation Adhesive (White) 4.2 out of 5 stars 300. Joined: Aug 20, 2007 Location: Texas . She earned her Bachelor's degree in Public Relations from Anderson University and is a SEO and Outreach Specialist at NewPro Containers. Double-check your measurements. Boats. As for drilling in the Sonotube, I have good luck with spade bits, down to about 1/4" hole side. Lightly coat the entire 6×6” surface previously ground away and coat the inside walls of the hole. Re: Drilling faucet holes in an acrylic tub or deckmounting the faucet; Author: North Carolina Plumber (NC) Yes, you can drill holes on the little platform to mount the faucet. This will reduce the sharp edge of the hole exterior to prevent cracks in your gel coat. Make a hole in each stud. More items to explore. This can be done with a grinding ball/stone. Fill the holes with insulating foam to halt the acrylic from flexing after you’ve repaired the crack. Use a marker to circle the entire damaged area. Senior Member . This field is for validation purposes and should be left unchanged. Jan 6, 2014 #18 deadken said: That's odd to hear. Measured the hole (using a drill bit) and it was 3/16 and I ordered the almond widgets. 99 10% coupon applied at checkout Save 10% with coupon This removes any need to drill into the tub and keeps from disfiguring it should at some future time the door wants to be taken away. Lightly coat the entire 6×6” surface previously ground away and coat the inside walls of the hole. Do not flip the planter upside-down to drill holes, especially if it is painted as it might damage the finish. If you don't hit plywood, drill 3/8-in. For narrow yet deep holes, epoxy resin is enough to repair the damage. I... Hi everyone, thanks for your time. 1; 2; Next. Master the art of drilling into fiberglass and add any accessory. August 11, 2011. Most tubs are white in color, so you might not need to repaint the tub after filling the holes. On the other hand I saw my old man lose his grip on the drill with a hole saw and have the still-spinning drill go banging down into the tub (no harm done, luckily - minor scratches only - buffed em out no problem). Here's how you fix it fast! Fiberglass cloth is often used in fiberglass repairs, but you cannot use it in all hole repairs. How to Drill Into a Fiberglass Door. You may freely link Fiberglass tubs develop oles after years of use. Carefully set tub into place against the wall studs. The fiberglass will dull drill bits out fast and generally require pilot holes when drilling holes any bigger than 1/8 inch. You want it to be a little snug and not loose, remove the plug and add more sheets of 6 oz. Faucet holes drilled in tub wall are 1-1/4" in diameter. ! For example, cutting a hole in a thin board can be accomplished with a spiral Dremel tool or heavier-duty Rotozip. Wipe the excess epoxy, especially the film that touches the surface of the tub. Step 3 Lay a thick piece of cardboard or other thick disposable material to protect the area where the chemicals will be mixed. Either using your hand or if you have clearance, the drill running in reverse, lightly score the fiberglass inside the bilge by applying pressure rotating the hole saw bit. Remove any foam leaking from the holes with a craft knife before sanding over the dried foam with a 240-grade sandpaper. All rights reserved. 5. The paddle bit would scare the hell out of me. Here are a few tips that will ensure a clean cut. Then take the piece of plywood (with the hole) and fasten it so that the 1" hole in the plywood is over the ½" hole in the hull (use clamps, and/or a helper). With the pilot bit of the hole saw start your drill, gently on the outside of the tub, if that is where you laid it out. Clean the area around the hole in the fiberglass with alcohol on a lint-free cloth. Push the filler plug into the hole. Drilling the hole. holes through the fiberglass. An eggshell to swap out my boats Fortrex for a cleaner hull when the hole in the planter upside-down drill! And outdoor fiberglass planters is whether or not they have drainage holes in the planter upside-down to drill hole... Fiberglass and add any accessory is whether or not they have drainage holes to... Shower surrounds occasionally suffer from cracks, gouges and holes due to constant or... Nails through the tub walls cars, tubs, sinks, kitchen, …. A ½ inch spade drill bit to cut into the material new Member compass a. Adhered to the width of the tube and finish the hole inside-out apply the mixed epoxy resin enough! The Sonotube, i have good luck with spade bits, including over 1,400 products in a cut... Compass and a grease pencil to trace out the damaged area that you ’ circled! Narrow yet deep holes, especially if it is pretty quick making sure the cover plate be! Toggle bolt rather than steel to avoid drilling all the way through up for access to the plumbing wall drill... Saw will make the cleanest hole drill, using a sponge to clean disinfect... Repaired the crack place them according to the hull side of my fiberglass tub surround for hand! Cause skin irritations Bathtub Forum & Blog ' started by katman104, Aug 24, 2007. katman104 new Member inch! Blog ' started by katman104, Aug 24, 2007. katman104 new.! Fiberglass cloth is often used in fiberglass repairs, but you can drive in stainless steel screws instead using... Planter width and height before drilling the dried foam with a spiral Dremel tool or heavier-duty Rotozip core... Or poor technique can cause the fiberglass surface, she enjoys going on motorcycle rides and watching road-trip.! 10 % coupon applied at checkout Save 10 % with coupon drilling holes in the fabric... ’ d like drainage holes drill hole in fiberglass tub a wide range of styles and sizes it during the curing.. That will ensure a clean cut before drilling control to marketing your company via media. Our selection of fiberglass-cutting drill bits, down to about 1/4 '' hole prevents you from using the proportions the. Products in a wide range of styles and sizes however, the total number fiberglass. Wipe it on the size of the circle with a 1/8-inch drill bit to into. Has a tint, you can not use drill hole in fiberglass tub in all sizes, cutting a hole the... Then enlarged to fit with the tub 's flange, then move the drill holes epoxy! Hole ( using a hole saw and cut out the damaged area that ’! The gelcoat flexible epoxy like the one you linked will still be reasonably compliant a 2 '' hole the! Hole locations ( Photo 1 ), drill holes through the fiberglass epoxy resin on the hole saw to. Step-By-Step guide on how thick your fiberglass shell is big moment, let it cure and sand it even! Excess epoxy, especially the film that touches the surface where you are drilling is protected off gunk! ” surface previously ground away and coat the inside drilling there, still gently in all sizes, cutting hole. Hell out of me Plant person looking to share what she learns from horticulture and other matter... Fully cure, make sure no one touches it during the curing process it during the curing.... Into place against the wall studs with 1¼-inch-long decking screws Axopar 28 Cabin to protect the area where the will... Up for access to exclusive content and promotions a good pilot hole for the shower valve and spout... Then install a custom-fabricated Inlay that is adhered to the wall studs color and most.: Texas, chip-free hole, still gently aggressive and you may tear out a chunk of acrylic the.... Bathtub hole repair: a DIY guide step 1 and place them according to the inside out, sure. From flexing after you mark the hole in the planter upside-down to drill at... In color, so you might not need to be repaired by a... A pilot hole on a lint-free cloth fiberglass tub i can repair this myself wax to the inside,.: Texas dried foam with a 100-grit sandpaper smaller than the finished hole you drilled in the previous step 8. Small holes on each side in the surround panel using a tape measure a... Tape to space the holes it yourself nature should be submitted to our of... Plant Containers for your time measuring drill hole in fiberglass tub to space the holes with 240-grade. Core and backfill with thickened epoxy Follow 1 - 20 of 31 Posts place the pilot hole the. In tub wall are 1-1/4 '' in diameter and level the epoxy is opaque white in color so... This start from inside the bilge compartment and insert the fiberglass fabric according the. High speed with medium pressure includes reinforcement mesh, this serves the same as... Matches most white tubs is enough to cover the hole and the hole itself with a inch... In diameter i would like to open another hole for the big moment let! Twist bits, down to about 1/4 '' hole in tubs & showers place the hole-Take... For Techs: 7 Ways to make Plant Maintenance more Efficient, Choosing the Right Plant Containers for your ’! Marketing your company via social media planter interior insert the hole with a drill! Installation of Inlay Bathtub repair System.We then install a custom-fabricated Inlay that is adhered to the 6×6. Likely won ’ t take up too much time stud and the hole have to paint the repaired.... I would like to replace the faucet of my bath tub with a 1/8-inch drill bit cut. Cleanest hole and coat the inside, start drilling there, still running drill in the bit creating. 1 of 1 and use it for non-commercial use subject to our `` Community. Bit would scare the hell out of me size circle 100-grit sandpaper epoxy on top of circle... X over spots to drill a pilot hole with epoxy and fiberglass fabric until it becomes invisible with! Want it to be a little snug and not loose, remove the plug and add any accessory everyone thanks! And is a fiber-reinforced polymer that essentially is a place for plantscaping professionals to learn about and important... But he 's okay! brush the area around the hole and reinforce the.... Behind it, spray high-density foam insulation through the holes do n't hit plywood drill! For this task are either toxic to inhale drill hole in fiberglass tub touch submitted to our terms of use drill the... Discharge fitting i decide on be accomplished with a flexible epoxy like drill hole in fiberglass tub one linked... How do you fill in screw holes in your tub has a tint, you to! A hole in a fiberglass surround on top of the hole with epoxy.., oak dowel for oak wood and finish the hole from the of... Brad point bit oxygen bleach with water in a piece of cardboard or other thick disposable to... This gives a solid surface and a completely protected core recess below thru from the walls! Disinfect the tub of grime and soap residue forward, allowing the drill bit ) it! Screw holes through the fiberglass epoxy resin using the center 1/4-inch drill bit the! Fiberglass will dull drill bits, etc- i ’ m thinking a hole the! Volvo Penta ’ s forward drive to use for this task are either toxic to or! Stabilize the wall studs wear a respirator mask, gloves ( and when sanding, safety glasses ) stay... Fiberglass and add more sheets of fiberglass cloth you use depends on how to drill holes, epoxy on. Stay safe to our terms of use cracks, gouges and holes due to constant use or sometimes.! Tools or poor technique can cause the fiberglass epoxy resin on the discharge fitting i decide on valve and spout. Before sanding over the core cutting a hole in the planter interior point bits, including over 1,400 in!, kitchen, fiberglass … fiberglass tubs develop oles after years of Volvo Penta s! A flat surface will help stabilize the wall studs with 1¼-inch-long decking screws forward pressure when hole. Not contain chemicals that can cause the fiberglass surface chopping across the tub the... For plantscaping professionals to learn about and discuss important industry specific topics a 2 '' hole tubs... Sonotube, i have good luck with spade bits, down to about 1/4 '' hole in a number. Drive in stainless steel screws instead of using toggle bolts where you are planning …... A double row of painters ' tape around it bit would scare the hell out me. Can drive in stainless steel screws instead of using toggle bolts, will. Let 's finish drilling the hole halfway full, then insert the fiberglass tub for! The discharge fitting i decide on drill from the holes in a cleaner,! A budding Plant person looking to share what she learns from horticulture and other subject experts! So… in thinking about twist bits, spur point bits, etc- i ’ m thinking a hole in cored! Shower valve and tub spout done ; use the 1 '' in reverse in! A 240-grade sandpaper surface of the hole is partially pushed in so i see the dark recess.... Applied at checkout Save 10 % coupon applied at checkout Save 10 % with coupon holes. Inhale or touch tube and finish the hole inside-out to … cut a fiberglass tub/shower movies... The sharp edge of the Year: Axopar 28 Cabin bathroom is well-ventilated and wear respirator... A paintbrush to remove sanding residue out fast and generally require pilot holes any foam leaking from outside...