opnspaces wrote:
You are correct in that the tank is held on by either straps or brackets about the edge. The tank is not help up by the plastic underbelly. Drain the tank well. Pull all the screws and drop the underbelly. Once the pan is down you should be able to see what is leaking and address it from there.
If the leak is a broken or cracked pipe it will be standard 3 inch ABS black pipe that you can get at Home Depot. Just cut out the broken section and glue a new piece in.
If the valve is the leak then I would replace the entire valve since they are not very expensive. Just make sure you buy a gray tank valve and not a black tank valve as the sizes are different.
Many thanks. Just the info I was looking for!