Hmmmmm ... while watching their "How To" video, I noticed that Mr.
Sticky's Poly bonder hasn't been approved for exposure to potable water
tanks.

You might be better off just replacing the tank with a used one.

Mike

Don Hanson wrote:
>   A few days ago I asked about repairing a leaking polyethylene water tank,
> then did some research on my own.  Well, I tried (because it was available
> locally at my sailboard shop) some  stuff called "Water-weld" that I found
> while looking for the supposed real stuff, and the WaterWeld failed
> miserably!  After painfully disassembling my camper and pouring water all
> over as I wrestled that  water tank out through the door, I  followed the
> directions then  reconnected the tank and put some water in...Worked ok
> until it was almost full, then the patch let go, dumping about 20 gallons of
> water inside...Ugg.
>   So I went back to find some "Mr. Sticky's Poly-Bonder" which is said to be
> the one product that will structurally bond Polyethylene.  I ordered some
> from the below, and while there on the website found lots of cool stuff that
> might help out some of you "project types"  I ordered at about 9am and got a
> tracking number for the shipment by noon..so they seem to be on top of it
> here.
>
> http://www.tapplastics.com/
>
>
>   Don Hanson
>