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bearsnob's avatar
bearsnob
Explorer
Mar 10, 2015

Gray tank leaking

My grey water tank started leaking all of a sudden, only when full. My fist thought was it must be a fitting but, when I pulled down the underbelly, it seems to be leaking someplace on top of the tank. It's running out like as if a plug fell out. In other words, the tank isn't swelling at all and the water seems to be coming out as fast as it's going in. Problem is, I can't see anything as there's less than an inch of space.

Unless someone has a better idea, I think I have to drop the tank. If I do that, I'd appreciate some recommendations as to where I cut the ABS pipes. I can't see an easy way to do it traditionally on the left drain. I'm thinking I just cut the last elbow in the middle and then patch it with a Fernco product or something similar.

Before I do anything, I'd appreciate any thoughts or advice you guys have. It looks easy enough to drop the tank. It's just those two drains, disconnecting the knife valve, and unbolting a rail from what I can see. Here's a picture of the drains going into the tank:

Click here to view picture.

Thanks in advance!

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