SH tank bulkhead fitting

I bought a 65 gallon norwesco leg tank as my SH tank. The only issue is, it came with a bulkhead fitting at the bottom which I didn’t realize would be a possible issue until now.

There isn’t much in the search about this, besides having to weldthe tank. If that is the case, I would just return it. Is there anything else I can do to prevent the bulkhead fitting from going bad all of the time? Or is there a certain way to plug the hole?

I have a bleach tank with a bulkhead and it leaked. I changed the bulkhead to a Banjo and use silicone grease. It hasn’t leaked since I applied this fix 3 - 4 years ago.

Where do you apply the grease? Just on the bulkhead threads?

You want it on the rubber o-ring/gasket as well. Dive shops sell silicone grease, we used it to help with our drytop rubber gaskets when kayaking.

You’ll be much happier in the long run if you just get another one without the bulk head


I applied it on the gasket touching the inside if the tank wall.

You can plastic weld it but I would return it and get another without the bulkhead.

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let us know how its holding up after you apply the silicone grease

Will do

any input?

I had a leak in my water tank bulkhead, applied the silicone grease and tightened, no leaks afterward. I’m sure it would help on the SH tank.

Holding up just fine.

My entire trailer is painted with iron armor truck bed paint, so it is completely black. It was easy to see the previous fitting was leaking because it had eaten through the paint on the wood (right under bulkhead) and then some of the wood.

I repainted it and the paint is still there. No leaks yet.

Just started leaking.

Put the gasket/seal on the outside of the tank so it’s not just sitting in bleach.

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What banjo fitting did you use?

Banjo bulkhead instead of cheap bulk head and silicone grease. Mine finally leaked this year. Small drip. I just took it apart, cleaned everything and reinstalled.

the only glue you should be using for bulk heads when dealing with SH is this

Weld-On 12818 724 Industrial Grade CPVC Heavy-Bodied High Strength Solvent Cement - Medium-Setting and Low-VOC, Orange, 1 Quart (32 fl oz): Industrial & Scientific


So when you guys are plugging the bottom bulkhead of your SH tank, you are just using a plug and silicone grease around the threads? Instead of having my bulkhead at the bottom and filling 5 gallon buckets I want to pull from the top of my SH tank when I’m down streaming. @Innocentbystander showed me how he plumbed the top of his Chem tank.

I have a 65 gallon leg tank for my softwash system. I’ve had a hose plumbed to the bottom for at least two years now for filling up pump sprayers and whatnot. Never had a single leak from it yet. I plumb all of my plastic connections with thread dope.


We have some SH tanks that used to have holes for bottom pull, we already had a bulkhead fitting in them, but we stuck a PVC plug in there, and silicone caulked around them on the outside just as a secondary measure. That might be the only place that a leak never happened that i know of…

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