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#1
posted to rec.boats.building
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drinking water tank
Can I make a potable water tank with FG/epoxy or does it need to be
lined w/ something? I have an odd space I'd like to store water in and an not sure of the need for a liner. If I need one, any ideas of how to make an odd shape that can still be accessed for the occational cleaning? Thanks, Kevin |
#2
posted to rec.boats.building
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drinking water tank
Kevin Brooker wrote:
Can I make a potable water tank with FG/epoxy or does it need to be lined w/ something? I have an odd space I'd like to store water in and an not sure of the need for a liner. If I need one, any ideas of how to make an odd shape that can still be accessed for the occational cleaning? Thanks, Kevin What size is it? |
#3
posted to rec.boats.building
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drinking water tank
Kevin Brooker wrote:
Can I make a potable water tank with FG/epoxy or does it need to be lined w/ something? I have an odd space I'd like to store water in and an not sure of the need for a liner. If I need one, any ideas of how to make an odd shape that can still be accessed for the occational cleaning? Thanks, Kevin I used such for the ten years I lived aboard my sail boat...100 gallon tank in the forepeak just aft of the chain locker. Made of 3/4 ply glued with Resorcinol and also bronze screwed to 3/4 x 3/4" hardwood strips along each seam on the interior. Interior was coated with a couple of coats of Gluvit as was the lid interior. Lid was then glued & screwed to the rest. For a vent I used a small (3/4"?) check valve on a plumbing "U" so that as water was pumped from the tank the check valve opened from air pressure. Though I didn't, the check valve could be filtered. Nowadays, I'd probably forego the Resorcinol, screws and Gluvit and just use epoxy fillets to join and coat the interior with same. Depending on tank size and how well it was braced from the exterior, thinner ply would be fine too. Obviously, it wasn't meant to be cleaned. Never felt a need. If you insist on being able to open it up to clean, one way would be to put closed cell foam slightly proud on the top edges of all sides, add hardwood strips around the outside of all top edges, then bolt the lid to those strips thereby compressing the foam. As far as making an odd shape goes, one measures the space then figures the size of the 6 parts necessary to make a box to fit therein. -- dadiOH ____________________________ dadiOH's dandies v3.06... ....a help file of info about MP3s, recording from LP/cassette and tips & tricks on this and that. Get it at http://mysite.verizon.net/xico |
#4
posted to rec.boats.building
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drinking water tank
I made the holding tank and ice box for my old 32' Traveler by first fabbing
a mock up with cardboard, (you can make a lot of adjustments/mistakes with cardboard for free!) Once I had the shape I wanted, I took the cardboard parts and used them for patterns for 1/4 exterior fir plywood. I then laid 2 or three layers of fg cloth/epoxy on the inside surfaces of the plywood pieces before assembly with bronze ring nails. I then filleted (epoxy and low density filler) and taped the fillets (cloth and epoxy). I installed deck plates on the holding tank for clean out. For the ice box, I placed a pan of boiling water inside and closed the lid and left until the water cooled. As I remember this was to harden the epoxy and keep odors down. Something like that anyway, sounded like a good idea and I never noticed any (odors). I got that from "This Old Boat" (I think) which is a great book for anyone wanting to work on their own boat. MMC "Kevin Brooker" wrote in message ... Can I make a potable water tank with FG/epoxy or does it need to be lined w/ something? I have an odd space I'd like to store water in and an not sure of the need for a liner. If I need one, any ideas of how to make an odd shape that can still be accessed for the occational cleaning? Thanks, Kevin |
#5
posted to rec.boats.building
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drinking water tank
Search this group for the thread 'water tank coatings' from a few years
ago. The most salient point you may discover is that you *should not* use "regular" epoxy - the amines may leach over time, with a potential for unhealthy side effects. MW |
#6
posted to rec.boats.building
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drinking water tank
Kevin Brooker wrote:
Can I make a potable water tank with FG/epoxy or does it need to be lined w/ something? I have an odd space I'd like to store water in and an not sure of the need for a liner. If I need one, any ideas of how to make an odd shape that can still be accessed for the occational cleaning? Thanks, Kevin Kevin, unless you're planning a very large tank, it might be almost as cheap and a LOT easer to drop in a plastic tank. Check the Ronco Plastics catalog http://www.ronco-plastics.com They make top quality tanks for a very reasonable price, and have more than 400 shapes and sizes to choose from, over 100 of which are non-rectangular. Alternatively, there's a company in ME called Triple M Plastics who makes custom welded plastic (PP) tanks for a very reasonable price. I don't have any personal experience with 'em, but several people on a couple of the email lists I'm on have bought tanks from 'em and are very pleased with both the price and quality. They don't seem to have a working website...I was able to pull a phone number: (207)985-4705 Fax: (207)985-8012 Just a couple of suggestions... -- Peggie ---------- Peggie Hall Specializing in marine sanitation since 1987 Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and Other Sources of Aggravation and Odor" http://www.seaworthy.com/store/custo...0&cat=6&page=1 http://shop.sailboatowners.com/books...ku=90&cat=1304 |
#7
posted to rec.boats.building
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drinking water tank
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#8
posted to rec.boats.building
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drinking water tank
Kevin Brooker wrote:
Can I make a potable water tank with FG/epoxy or does it need to be lined w/ something? Yes you can make a F/G epoxy tank. Make sure you finish the interior of the tank wity a couple of coats of "tank resin" which is a resin approved for tank coatings. Seal the lid to the tank with SikaFlex 291. Good luck. Lew Lew |
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