Pipe feed thru tank wall

Weld a flange onto the pipe. Works for steel pipe. Use a compression tank connector but bore out the internal shoulder to allow the pipe to go right through. this is better for copper pipe. Route the pipe over the tank wall. That way you avoid any chance of a leak.

John

Either internet, or in person, visit a boat supply store and get a brass thru (through) hull fitting in the size you need. use a gasket inside the tank. The fittings are also offered in various plastics but don't seem to hold up as well as brass.

John H.

Or a bulkhead fitting. The major difference being thru- hulls have a pipe thread (often male) on one end, the bulkhead fitting will have a female pipe threads on both ends and is generally shorter than a thru-hull.

Ned Simmons

I went to a local farm supply store got plastic feedthru parts for cattle water tanks. Lots of different sizes available. Used RTV to make sure no leaks.

We used several different sizes to make a cooling system water tank. Has not leaked in 3 years.

Paul, Redmond, OR

You can improvise nicely with stuff from Home Depot.

PVC electrical conduit has straight threads. You can improvise a bulkhead fitting by mating a male and female adapter on either side of the tank. Cut sheet rubber to make a gasket, or adapt a tub drain gasket.

I made a 44 gal tank this way from a new Rubbermaid Brute trash can. Has held up holding nasty pool chlorine out in the weather for years.

Nick Hull wrote in news: snipped-for-privacy@corp.supernews.com:

Weld a straight coupling through the tank wall. Weld both sides, it will never leak, unless you allow it to rust out.