leaking bulkhead

jag1979

New member
I just plummed my aquarium and was testing connections, the bulkheads are leaking. Is this normally too tight, too loose, cracked bulkhead...how tight do you tighten them? it says not too tight but...

suggestions?
 
how do you have them installed? What is on the inside and what is on the outside. Also, how did you tighten them -- did you turn the inside, the outside part or both? Were they clean and the glass clean (no sand, etc.)?
 
the inside of the bulkhead (on the tank side) is a rubber washer, the outside is just the bulkhead nut. I hand tightened them by tightining the outside and the glass was clean.
 
Okay -- so that all sounds good. I'd tighten them a bit more and test. Also, if the water is coming from inside the bulkhead, then there is a leak in the plumbing on top. If it is coming from outside, then it likely isn't tight enough. It doesn't sound like you bunched up / kinked the gasket. The bulkhead itself shouldn't move while you tighten -- just the outside nut.
 
I have been trying to untighten the bulkhead nuts and can't do it, is it possible/likely that I tighten it too much by hand and bunched up or kinked the gasket?
 
It's possible. If you can't budge it now, you may have done that. Wow, you really have them on there. If you can get someone to push down on the bulkhead from the top, then you should have an easier time loosening the nut.
 
I had the same problem on my 300 gal. Nothing I did stopped the drip. Had to empty 300 gals of salt water into a lot of plastic garbage containers and move sand around. I replaced all 12. Do'nt go cheep on bulkhead fittings!!!!! It will save you more than you know. I did the ebay thing on my first bulkhead fittings never again.
Ron
 
luckily I was just setting up the tank and just poured a few cups of water into the overflow to test them out.

I am using the bulkheads that came w/ the aga overflow kit, they feel pretty cheap maybe I should get some better ones...if I can get those off. any suggestions, if they work well I really dont care how much they cost
 
so next time how tight to you tighten them? does everyone just hand tighten them but not as tight as you can, just "tight enough" whatever that means
 
Yeah, "tight enough" is what I do. It's really hard to describe. Not as tight as you can.

RE better bulkheads. I don't think the oceanic or AGA tanks have holes that accommodate Schedule 80 bulkheads. The ones you have should work fine. I originally tried schedule 80 bulkheads for my 90 gallon and quickly found out that the outside diameter of the bulkhead (with threads) was too thick for the holes in my tank unless I really dropped down the inner diameter size. The regular schedule 40 bulkheads work fine, but are nowhere near as heavy duty as the schedule 80.
 
Yeah, "tight enough" is what I do. It's really hard to describe. Not as tight as you can.

RE better bulkheads. I don't think the oceanic or AGA tanks have holes that accommodate Schedule 80 bulkheads. The ones you have should work fine. I originally tried schedule 80 bulkheads for my 90 gallon and quickly found out that the outside diameter of the bulkhead (with threads) was too thick for the holes in my tank unless I really dropped down the inner diameter size. The regular schedule 40 bulkheads work fine, but are nowhere near as heavy duty as the schedule 80.

Make sure sure it is leaking around the bulkhead and not the inside. The inside would mean there is either a crack or a leak in the plumbing in the overflow.
 
thanks a lot crubletop, now I guess I need to figure a way to get those bulkheads off. then I guess I need to get some new gaskets and tighten the bulkheads just enough next time
 
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