Will fiberglass/epoxy stick to a PVC plumbing tube?

[Mr. Sandman]

That's not the issue. I only need the PVC to pass thru the bulkhead to get to the low point in the tank...from the PVC I plan to attach a 1.5" sanitation hose that will run down towards the keel (so the tank will natually drain and fill the sanitaion hose) . make a slow bend and mate up with a pump. I was trying to use a fishwell drain to pass thru the bulkhead but because of the slope of the bottom of the tank (the bottom of the boat is the bottom of the tank (this is a deep fishbox) so I have to drain it out the side into the engine compartment. I can not get it near the low point, there would always be water at the bottom of the tank. But I can drill a 2" hole and push a 1.5" PVC pipe thru the bulkhead (along the bottom of the hull) from the outside and epoxy that in place, attach the plumbing fittings and put on the hose. I think it will work. I plan to put that in tomorrow. I got all the fittings today.

[Van]

How about bulkhead fittings with NPT threads they make them pretty big. Just a thought...

Hayward® BFA Series Industrial Bulkhead Fittings | U.S. Plastic Corp.

I used them on my tank inlet.

[Mr. Sandman]

Here is a cross section of the tank

[beamie]

Kind of in a pickle there. Poor design for user friendly tank wrt draining all the stuff. What is that 3" bulkhead, a foam/wood filled stringer? You really need a collared fitting that the collar/flange is at the same angle as the hull so it slides thru the hole aling the line of the hull. Think about making your own custom fitting. Fiberglass tube with angled fiberglass collar all glass together.