All guides are digital. I love it when people say "Don't use a ball valve, use a seacock!" Seacocks are required to shut off the flow of seawater supplied via a through-hull fitting to onboard equipment, including engines, gensets, livewells, air-conditioners and the head. Even a small crack tends to travel over time.. Besides docking on a windy day with a new boat in front of an audience, drilling holes is one of the most dreaded tasks for a do-it-yourself boater. Covers, Boat Wiring & 1 Answer Sorted by: 2 Correctly applied silicone of the right grade is a (semi) permanent solution. Helm Seats, Shop Kits, Boat Trailer Theres merit to this fear. Once cured, sand the edges and add the next layer.Last, sand the edge back to the shape of the original hole. Fasteners, Boat Windshield Screws, Boat Handles, Pulls, In this boating how-to video, we cover a thru-hull fitting and seacock replacement. Tubes, Shop According to marine survey firms, leaks at through-hulls are estimated to be the cause in 18 percent of sinkings while under way. After an attempt with thru-hull fittings and hoses that didn't work perfectly, I've decided to do the following. here's a link to a real good article with photo's on replacing a through hull fitting. Trailer Winches, Shop The second way is to cut notches around the edge for the water to pass through, or you can drill some small holes in between the ball and the seal. Boat, Sell A Terminal Platforms, Slide Holders, Cabin Accessories & Boat Repair, Boat Paint & for Sale, Buy A To properly seal a wood core, use epoxy resin, and brush it onto the exposed surface to thoroughly wet out the exposed end grain of the wood. Maintenance, Fiberglass & Epoxy Cushions, Lexington Now, Shop This makes for a nice neat install and a fast bottom. I think 4000 is the UV stable version of 4200not needed below the waterline, but great where the sun does shine. JavaScript is disabled. Blocks, Marine Next add the hardener. Seasoned pros wear safety glasses or goggles. Tackle Boxes, Fishing Bait & Hardware, Boat Cabin Masking tape provides good protection. April 23, 2021 Strictly speaking there is no need to make holes in your hull, but we do it anyway. Allow the epoxy to soak in. ~Isak Denesen. Caulking, Marine Engine Maintenance, Fiberglass & Epoxy Covers, Boat Wiring & Detectors, Binoculars & Work down to the fiberglass to ensure the best bond. One is to simply make the seals smaller in diameter than the opening in the body so water can flow around it. Racks, Fish Finders, Sounders Copyright 2019 IBOATS. IMHO, they too are a compromise, albeit a lot better than just screwing a ball valve onto a through hull. Deals, Boat Seats Holder, Anchor & Dock Many items, like cleats, may come with a paper or cardboard template to follow. that's a cool idea but he specifically said "see how these taper down and seal so soon. A single session should do it. You must log in or register to reply here. This boat is an Mako 191. Tubes, Shop Or use silicone and use a lock-nut to secure the valve in position. You must log in or register to reply here. Kits, Seadog Stainless Steel Cup Hardware, Boat Cabin Tops, Bimini Top Sep 5, 2008 Paste worked great for me. In this application, however, I think you would be better off with a traditional seacock, and then just screw the elbow directly into the seacock. Honda 5hp Outboard, Boat Regal uses pre-made templates with pre-drilled holes. Deals, Trailering Remove the backing nut and insert the discharge thru-hull from the outside. This is a simple step by step guide on how we did it.--- Before you start ---Your existing . If you screw a valve onto a through-hull, you won't get a good seal and won't be able to screw the valve down flush with the . Galley, Barbeque Galley, Covers and Lights, Boat Trailer If you can't close the valve because it is frozen, does your boat sink? & Rings, Prop Nut Kits & Good bedding technique resulting in a thick layer of sealant overcomes this problem, making polysulfide suitable for virtually all non-plastic bedding applications, including tank fills and vents, wood components that might be subjected to bleaching, and thru-hull fittings both above and below the waterline. The Britican Experience: https://sailingbritican.com/liveaboard-experience/Check out our blog hosting over 400 articles and videos all about sailing/cruising/liveaboard life here: https://sailingbritican.comVisit our Sailing Britican sailing guides/books shop here. What's wrong with a bucket and a sponge? Covers, Boat Cover Here, I remove old, improperly drilled Thru-Hull drain fittings. Sand until you get to gelcoat or a . Use sharp, fine-tooth blades. Acessories, Fishing Outriggers & Supplies, Boston Whaler, 1972-1993, Seriously, have any of you EVER seen a metal elbow fail? Seats, Pontoon Boat Seats & Plug and Glass the large exposed holes, drill and install new fittings.FiberGlass Resin: htt. If the hole is through cored fiberglass, youll need to seal out moisture. Bilge Pumps, Shop Maintenance, Boat Cleaners & Protection, Dock Storage & Meters, Marine Electrical Panels Probably because, on some level, we know water isnt our element. Deals, Dealer Protection, Ladders, Steps, & You add the ball valve to the top of it. Kits, Boat Trailer How Sealants Work Following on from my last post, I now have a shiny bronze 3/4" thru hull fitting and ball valve. Place a generous bead around a fittings flange, so that sealant evenly oozes out around the perimeter of the hole as you push it into place. Hardware, Boat Seats by Most step wrenches have a nice flat spot for a pipe wrench or adjustable wrench for added leverage. Fishing Lures, Fishing Rod Holders & If you want to keep any future water intrusion at bay, its essential to first bed the core by removing as much wood as possible and replacing it with a paste of epoxy resin thickened with a suitable filler, like colloidal silica. Seats, Pontoon Boat Seats & JavaScript is disabled. If you have to get a seal with the valve facing in a specific direction, it'll have to be teflon tape I guess. Hull Hole Bevel Devil GPS Chartplotter and Fish Finder Combo, Find And the deck? If you must cut a right angle, use a knife to score an arc around the corner first. I've got a thru-hull fitting thats leaking. Parts, Sacrificial Anodes & Hardware, Boat Trailer Should you start a crack, it wont spread beyond that line. The hull will be pounded. Drink Holders, http://forums.iboats.com/boat-restomph-ss-165-rebuild-545380-66.html#post3942513. Rather than drill through the entire depth of the material, Regal techs drill partway through, then stop to pop the plug from the cut out of the saw. I still have the problem of getting the scoop strainer to the seacock though. Skill Parts, Inflatable You are using an out of date browser. Deals, Electronics Under water 3M 4200 or Sik-I-Flex 291 are popular. Boating Magazine may receive financial compensation for products purchased through this site. All, Anchor & Ventilation, Interior & Cabin Login, Boats Use a centerpunch to dimple the surface so the bit wont skip. Shelters, Boat Images In Posts Property of Compass Marine Inc. What should i use to seal plastic thru-hull fitting in an aluminum bass boat. But as we discovered, a few more, when properly drilled and sealed, wont rock the boat. Mess Master Avoid paper towels. Guide, Boat Boats, Propeller Parts & Larger holes can be trimmed with PVC conduit, which can also be secured with silicone. Pumps, Livewell Aerator Pumps Enjoy banner ad-free browsing with SailNet Community Plus. Galley, Barbeque If you want to know what the best brand is, call a plumber. Outboards, Shop Blocks, Marine Seats, Offshore Boat Drill a 1/4 inch hole through the plug, countersink the end and insert a long 1/4-20 SS bolt. Next, use a tongue depressor to work the goop into the void, moving in one continuous direction to eliminate trapped air bubbles. For a better experience, please enable JavaScript in your browser before proceeding. I didn't know that about the Marelons re: the pin! Deals, Pumps & Plumbing Once the ring of tape has been pulled off sand away the bottom paint that would be under the thru-hull. JavaScript is disabled. Systems, Lowrance Hook2-4 GPS We use all kinds of valves, and lots of actuated valves, some that open and close 100,000 times per year. Cutting or drilling is just the start. I know that Maine Sail has done some good articles on replacing seacocks, thru-hulls, alternate backing plates, etc., but it seems that no one has done much with scoops. 1 Destin, FL I've got a thru-hull fitting thats leaking. Bevel or chamfer the edges of holes with a countersink, or even a file, for the very best seal. I have searched the web, and asked a few folks, but I have not found any good info on substituting a scoop strainer for a mushroomhead thru-hull. Deals, Dealer Rails, Marine Tools & Tool The resultant is a dumbell shaped plug. You can cast a plug like Mistress says, or just lay it up on the bottom, and slowly fill it in from the top. Pump. From bowriders to express cruisers, boats have dozens, possibly scores, of holes. Despite our boat blessing us with the ability to visit a different realm, a special place reserved for the members of our rank, its primary purpose is to keep the water out. Drill a 1/4 inch hole through the plug, countersink the end and insert a long 1/4-20 SS bolt. These flexible adhesive compounds are ideal for teak decks, bedding deck and hull hardware, sealing thru-hull fittings, and underwater seams. Hitches, & Lighting, Marine Teak Safety & Skill Workers put the template in place to drill with confidence. Share Improve this answer Follow answered Apr 26, 2021 at 14:27 Separatrix In terms of pricing, at least at West and Defender, the Marelon units uniformly are less expensive than the bronze seacocks. Hitches, & Keeping the tool square and level is important when using a hole saw. Covers, Boat Shrink Wrap Savers, Boat Trailer Guides & There are holes for water pickups, drains and transducers, and above the waterline for bilge outlets, air-conditioners and exhaust. Weve cited the serious consequences, but there are other risks. Storage Products, Carbon Monoxide & The Fora platform includes forum software by XenForo. Try this on for size. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. 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Beware of bare fiberglass edges; they can be extremely sharp and cut through insulation with movement and time. Kits, Seadog Stainless Steel Cup Shop Biminis, View Cable, Marine Batteries & Marine Battery Chargers, Shop Above the waterline, silicone sealants are often acceptable. http://www.pbase.com/mainecruising/replacing_thruhulls, My project is hitting the waters of the pnw. Option #2 Remove the cracked fitting and replace with the same thing (if you ever plan to use them for the orginal purpose) and add a short piece of hose with a plug in it. & Software, Digital Thats because they naturally seal BETTER as the seats wear, where most other types of valve seal worse as they wear. In this boating how-to video, we cover a thru-hull fitting and seacock replacement. He recommended using just the nut to hold the thru-hull in place with a bronze non-flanged valve. It may not display this or other websites correctly. Tables, Minn Kota I design and build membrane systems working from 5 psi to 1200 psi. Modern devices that make boating easier, more reliable and more convenient can get very difficult to install without drilling holes in the hull and fitting seacocks. Fiberglass repair costs a lot of money!. Safety The most common are alloys that are specifically designed to combine strength and corrosion resistance, particularly when submerged in saltwater. Skill All, Boat Bimini Safety But you still are threading a ball valve into the flange adaptor, and that presents another potential failure point. Hey, that Marelon seacock IS a ball valve with a flanged adapter! Covers, Boat Cover Well it's my turn to ask questions. Many products featured on this site were editorially chosen. Biminis, Paint and Deals, Electrical Chafe Protection Varnish, Marine Adhesives, The intake thru-hull will screw directly into the seacock. And thats on a brand-new boat. Suggest epoxy for the best process. I have heard 5200 and 4200 what should i use. Zincs, Generator Insurance, Boat Replacing Thru-Hulls and Seacocks Photo Gallery by Compass Marine at pbase.com, Seacock & Thru-Hull Primer/Pre Information Photo Gallery by Compass Marine at pbase.com, Apollo Bronze 1 1/2" Flanged Seacock = $94.99. All rights reserved. Pumps, Marine Pump Replacement Get everything good and clean, rough it up a little bit with a Scotch-brite pad and you're good to go. Boat, Boat Buyers Plus the ball is self-aligning in teflon seats, they almost never sieze up, unless the something has attached itself really well to the ball surface when they are CLOSED, not open! Now, Shop You are right that if you need to replace the valve it's easier to change just a ball valve, but a properly installed, properly maintained, quality seacock is not going to fail with anything close to regularity, if ever. My sailing is all fresh water day trips several time yearly with the boat on the trailer otherwise so my knowledge is limited.in more ways than one;^). Water pumps on a boat can be either electric or manual. Butyl tape should only be used on above water applications where compressive forces will cause the tape to fill voids. Heres another tip. Brass Rollers, Boat Trailer Lights, Boat Trailer You are using an out of date browser. Copyright 2019 IBOATS. Its good for tapered threads but not for parallel ones. & Starters, Marine Solar Power Use the mirror to check the backside of the fitting. Here, I remove old, improperly drilled Thru-Hull drain fittings. Holder, Anchor & Dock I'm looking for options for how the hole (I'm guessing 1-1.5") can be sealed up once the old unit is removed. Locks, Boat Deck I agree the setup is scary, that is why I started researching how to fix it. AN Plumbing, Fresh Water Boat Gelcoat has no flex, Vahle explains. & Dock, Anchor Chains & CREATE Insurance, Boat Thanks for the great answers to my questions. They are straight threaded ( NPS thread) so they can be cut to the correct length, for your hulls thickness, and then be threaded into a female straight threaded seacock or a flanged adapter. Hardware, Boat Seat Just one dope's opinion. Why should you fear drilling one or two more? Hardware, Marine This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Deals, Camping & RV Waxes, Boat Cleaning your boats Gel Coat Match, Shop Telescopes, Covers and For a better experience, please enable JavaScript in your browser before proceeding. According to BoatU.S. With a hole cut in the tape press the thru-hull tightly into the hull and lightly trace it with the X-Acto knife, just enough to cut the tape, then peel away the tape that was under the thu-hulls head. A scrap of foam rubber with soapy water wipes away the final filmy excess better than paper towels do. I have used 3M 4200 for years, never had a problem with it leaking and it allows relatively easy disassembly if necessary. A pair of light gloves prevents abrasion from splinters and chips. Accessories, Pontoon Bimini Covers, Boat Seat Drill holes through the corners to insert the blade and avoid overcutting. Hardware, Boat I'm not really sure why you don't want a true seacock, but the valve should go directly on the throughhull, and the elbow come after the valve, FWIW.
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