Use a bulkhead fitting the type with a nylon washer or o ring.
Bulkhead blind tank fitting.
Bulkhead fittings commonly referred to as tank fittings are used whenever a pipe or flow control device must pass through or be inserted into a tank or vessel wall.
It can be installed blind.
Simply drill a 1 hole saw hole into your tank insert the fitting tighten the engagement nut and your done.
These are norwesco brand strong stainless steel bolted bulkhead fittings and stainless steel bolted tank fittings made of chemical resistant 316 stainless steel.
They can be used as an inlet or outlet for faucets pipes and spigots.
They make them specifically for that use.
The usi rv designed bulkhead blind tank fitting installs in less then 5 minutes providing a mechanically solid liquid tight connection to your tank.
Choose from our selection of bulkhead tank fittings including plastic pipe and pipe fittings metal pipe and pipe fittings and more.
You do not need access to the inside of the tank to install this bushing.
By drilling a 1 hole in the top of the tank you can adapt to 1 4 female npt.
In stock and ready to ship.
Any decent fitting place will have them.
We offer four designs of tank fittings made of pvc cpvc and polypropylene materials having either epdm or fpm sealing gaskets.
The usi rv designed bulkhead blind tank fitting installs in less then 5 minutes providing a mechanically solid fluid tight connection to your tank.
No internal bolt welds to leak.
It s the same thing they use for outlets on plastic fuel cells.
The stainless steel studs are in a blind hole so there s no worry about fasteners leaking.
Kit comes complete with stainless tank bushing nitrile centering o ring nitrile sealing gasket stainless washer and nut.