Bulkhead help

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I'm fitting my Durso pipe today, when I originally screwed in the original overflow pipe to the bulkhead, after tightening I could still turn the pipe and bulkhead. Should it not be tight enough to not turn on the glass? Hope this makes sense?
 

leslie hempel

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i use silocone to seal the join..... i dont rely on the gasket provided...
 

Kanga

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Gaboon, I hope this will make sense

The part with the gasket should not turn while tightening(it twists and tears the gasket)

So the bottom nut should turn to tighten, the nipple and top nut should stay still.
 
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Gaboon, I hope this will make sense

The part with the gasket should not turn while tightening(it twists and tears the gasket)

So the bottom nut should turn to tighten, the nipple and top nut should stay still.

Good Morning, so Kanga am I correct in asuming then that you only put a gasket on one side of the bulkhead then. I have always used silicone as well. Would that be correct?
 

Kanga

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Good Morning, so Kanga am I correct in asuming then that you only put a gasket on one side of the bulkhead then. I have always used silicone as well. Would that be correct?

Morning Sanders, yes only one gasket on the top (i.e. the water side) It seals very well and I have never used silicone as it doesnt really stick to the PVC very well. However no harm in using it:)
 
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Thanks Kanga

I will stick to one from now on. I do have six holes to drill before the end of this year. Then I'll do as you suggest
 

Kanga

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Oh, i forgot to mention, use thread tape, otherwise the water runs down the thread.

Gaboon, the only time I have ever had leaks is using 2 caskets
 

Kanga

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Just as well I ask these silly questions:)
It would only be silly if you didnt ask, the only reason I know is because I have made this mistake before:lol:
 
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I never silicone mine. If I keep the lip of the bulkhead, then the one gasket between that lip and the tank's inner surface is sufficient. No gasket on the bottom of the tank... The gasket presses against the lip hence no water can leak.

If you cut off the lip, or use a bulkhead without this lip to thread something on the inside, then I use two gaskets. I also use teflon tape to seal the junction between the nut and the thread on the inside. This helps prevent water from leaking through the threads. If any water do manage to leak the gasket and teflon tape at the bottom provides a second layer of sealing. Maybe not perfect, but it works for me.
 
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Yes I use teflon tape on all my fittings and it works great. Thanks man
 

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