blukhead ?use sylicone or not?

[tightline]

ok got a new tank it has 2 1 1/2 in bulkheads the bottom for overflow that have been remoned for transport my question is should i put a lil bit of sylicone around top and bottom of bulkheads?? and how tight do you gat them im SCARED of cracking the glass

[wvreef]

I have never ised any silcone myself on these, make sure the rubber hasket is clean and the imside bottom of the tank is clean of all trash so it will seal. I only tighten mine as tight as I can get it with my hand

 

Hope thia helps

[bill stine]

There should be no need to use any silicone as long as the surfaces are clean as stated by wvreef, make sure the gasket is on the inside of the tank and only tighten hand tight plus a quarter turn with a wrench, any more and you risk deforming the rubber gasket and it wont seal effectively.

 

Good luck

 

 

 

 

[Jon Lazar]

No to silicone sealant, but I put a very light layer of silicone grease on seals and o-rings to keep them from drying out.

[Incredible Corals]

No to silicone sealant, but I put a very light layer of silicone grease on seals and o-rings to keep them from drying out.

 

+1!

 

Dive shops have silicone grease or just order online.

[treesprite]

Is everyone talking about just under the bulkhead, or are you including on the outside of the tank around the outer edge?

[Origami]

No to silicone sealant, but I put a very light layer of silicone grease on seals and o-rings to keep them from drying out.

 

+2 Just be sure that you don't tighten the nut so tight that the gasket squeezes out from under the flange.

 

Is everyone talking about just under the bulkhead, or are you including on the outside of the tank around the outer edge?

For me, just on both sides of the rubber gasket. Sometimes the threads, but not often. Silicone grease, not sealant. I never use silicone sealant on bulkheads.

[treesprite]

I meant to say silicone sealant not the grease, but you answered the question either way.