I inherited a sewer vent leak (for several years) from PO, water collected on top of black water tank, I cut the floor out to get to it and change out the gate valves seals which were leaking.
It was a joke trying to get to the valves thru the inspection doors below.
After I opened up the floor I found water puddled on top of the tank in soaking wet insulation.
Now it was almost 5 weeks since I fixed the leak but the water was still there, never dried out.
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I redid both valves, cleaned both sets of wires connections going to black and grey tanks, then re-routed them a better way.
Next I formed the foil insulation Promax R-14, it was great to work with, a pair of scissors, some duct tape and it can't get soaking wet ever again.
Last cleaned and painted with POR.
Closed up floor and fibreglassed over, see this
thread.
Leaking Vent-Tank re-fit
Linear Mode
