Removal of fresh water tank T2670

[MACKCL1998]

The floor is wet under my fresh water tank! (1999 T2670) Part of the tank is under the refrigerator and part under stove. Has anyone removed one or have an idea as to the best procedure to remove the tank to investigate then repair the leak? I am thinking the removal of the stove might be the way to go?
All hoses are good and the clamps are tight.
Dom

[kanyonkitty]

OK, just a quick thought. Is it possible that it could be from condensation ?

[MACKCL1998]

Originally Posted by kanyonkitty

OK, just a quick thought. Is it possible that it could be from condensation ?

I do not believe so, sides are dry but floor is wet under tank. I know it is coming from the tank itself. I have added maybe three gallons to use while traveling for bathroom use only.

This problem started just recently and I want to remove the tank to see if I can find the problem. Condensation never crossed my mind, but could have been a possibility. Thank you for the suggestion though!

Out camping in Maine right now and have no need for the fresh water tank. When I get back home I will most likely remove the stove to gain access to the tank. It looks like the only way to remove the tank.

Thanks again Kitty
Dom

[JohnB]

Hi Dom

I cannot help you on how to get the tank out as I have not seen your floor plan enough to know.

But I will pass this on which may help.

The large fill pipe, now a days the green and white ribbed one. That ribbed pipe can be a bugger to get it to seal back up. Even with double clamps you cannot seem to get even pressure all the way around to seal it up. On mine Sunline used FDA food rated silicone. This is not ordinary silicone it has to be special to not have any harmful additives to it. You can find this is Lowes or Home Depot I cannot remember which one. It is Aquarium silicone. Looks like this


Fish have the same concerns as us humans do. If you have a commercial outlet you can buy food rated silicone as well as we use it at work. But on the private sector Lowes and Home Depot seems to be the method.

The silicone is a double edge sword. Yes it fills in the spaces but it is so slippery that the hose will fly off until it cures. Best is if you are going to try this is to caulk, slide hose on and let it cure overnight to firm up. Then next day add 1 or 2 clamps.

If mine ever starts acting up again with that hose, the ribbed hose will be gone. I have read others getting ride of it too and going to a smooth bore hose. Costs a little more but it solves the problem without the silicone.

Good luck

John

[MACKCL1998]

Hi John,

Good tip! I have seen and used the product you described and I do see clear silicone on slot of the plumbing supply lines throughout the coach.

I will consider the smooth bore hose as a replacement!

Dom

[MACKCL1998]

Finally repaired the tank. I ended up removing the plug,, then carefully heated the fitting with a heat gun until the fitting started to melt. I had to shield the rest of the tank with a piece of sheet metal so that I wouldn't melt a hole into the tank itself! Then I heated a putty knife with a torch and smoothed the fitting closed down to within a quarter inch of the tank. After I had closed the fitting I cut up pieces of polystyrene milk bottles and with the heated putty knife and applied additional layers to the repair.
Filled the tank and it didn't leak!

Jon, I took your advice and replaced the fill tube with a clear food grade hose (no silicone needed).

Thank you all!
Dom

[JohnB]

Dom

Wow, cool! Thanks for reporting back.