How to patch a leak our water tank?

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jerryaxler
Posts: 271
Joined: Feb 13th, '05, 14:10
Location: Cape Dory 36, Shana, Rock Hall, MD

water leak

Post by jerryaxler »

My starboard tank cracked several years and I went online and purchased a plastic welding kit that is used in the auto collision repair shops. It came with a video and several different plastic welding rods. It worked great and I still have enough rods to do about 40 more cracked tanks. Hopefully that will not happen, but if anyone wants to borrow my repair kit and your in the Philly area just post a PM.
BTW the weld has held up for about six years of fairly heavy travel
Fairwinds and following seas,
Jerry Axler
Jeff and Sarah
Posts: 437
Joined: Aug 25th, '09, 17:03
Location: CD33 "Prerequisite" / CD28 Flybridge Trawler "Toboggan"; Annapolis, MD

Post by Jeff and Sarah »

Darn- should have talked to you a few hours ago! I'm right next to Philly.
sfreihofer
Posts: 223
Joined: Dec 6th, '07, 22:05
Location: 1981 Cape Dory 25 #794, S/V PEARL
Contact:

Polyethylene glue

Post by sfreihofer »

I used TAP Poly-weld. It's about $13.00, and if you follow the directions (which includes a heat treatment to the part) it worked well for me where a fitting was not properly bonded to the tank. I cut a "washer" (=patch) from a milk jug and glued it over the area to reinforce the repair.

TAP Plastics has a YouTube video that shows the process. Here is the link to TAP:
http://www.tapplastics.com/shop/product.php?pid=435&

Stan Freihofer
1981 CD 25 #794
Ft. Lauderdale
Instant Bubble-head. Just add water.
Leo MacDonald
Posts: 251
Joined: Feb 5th, '05, 21:00
Location: 'EVENING LIGHT' CD33 No. 38, Pine Isl. Bay, Groton, CT

See 'PW Tank Repair - 3M DP-8005'

Post by Leo MacDonald »

Hi Les,
This has been hashed out before. Search for "PW Tank Repair - 3M DP-8005" - all the info you need. The stuff WORKS!!
F/W,
Leo
Fair Winds,
Leo MacDonald
Founding Fleet Capt., NE Fleet
Past Commodore, Member No. 223
A 'Cape Dory Board' supporting member ~1999 to ~2015 :-)
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