Bulkhead Gasket - inside or outside?

[StirCrazy]

Originally Posted by Myka

Ok, this is funny. I'm arguing with a friend about which side the rubber gasket goes on a bulkhead. So I need some proof that I'm right.

Does the gasket go on the inside of the glass (the wet side), or the outside of the glass (dry side)?

Flang side, always. other wise it can wick through the threads.

also there is no better way to install it.. it all depends on the type of bulkhead you have and how much room you have to the nut to spin on. I had them both ways as if I was doing a through bulkhead to the inside and I wanted to add piping and a strainer it just worked out better.

another reason to put it on the dry side might be if you are doing a closed loop and you don't have much room outside due to a wall or cabnet then you want the flat side on the outside to give you more room.



Steve

[i have crabs]

i retract my statement

i checked the bible aka. the reef aquarium 3
i thought i remembered it saying to always have it on the wet side, but it says it should always be on the wet side and on the flange side and if the nut is on the wet side you should use 2 gaskets one on each side

[StirCrazy]

Originally Posted by i have crabs

i retract my statement

if the nut is on the wet side you should use 2 gaskets one on each side

that would be a waist of a gasket as that water can still migrate threw the threads. also if you try tighten the nut with a gasket there it just bends the gasket out of shape. and besides if you have a gasket on the flange side there is no need for one on the other side as it won't leak (if done right)

Steve

[i have crabs]

just repeating what delbeek and sprung recomend,
i personally would just put 1 gasket on the wetside still, i also have the habit of coating the edge of my bulkheads with silicone on both sides

[Myka]

You guys are awesome!! I didn't think I would get so many answers. We were talking about a standard bulkhead set up in a traditional style with the flange to the wet side of the tank. His theory was that the UV from the halides breaks down the gasket, so it has to go on the dry side. I was like, "Um what about the threads leaking?", his reply "Oh I just silicone them."

[intarsiabox]

Originally Posted by Myka

You guys are awesome!! I didn't think I would get so many answers. We were talking about a standard bulkhead set up in a traditional style with the flange to the wet side of the tank. His theory was that the UV from the halides breaks down the gasket, so it has to go on the dry side. I was like, "Um what about the threads leaking?", his reply "Oh I just silicone them."

Just ask him when was the last time his tank fell apart because the silicone holding the glass together disintigrated.

[StirCrazy]

Originally Posted by i have crabs

just repeating what delbeek and sprung recomend,

um... two fish geeks? you wouldn't rather follow the manufactuers directions?


Steve

[i have crabs]

ok fair enough, but just for fun please follow the manufacturers directions on the next 3 aquarium products you buy

[Myka]

Originally Posted by i have crabs

ok fair enough, but just for fun please follow the manufacturers directions on the next 3 aquarium products you buy

LMAO!!!!!!!!!!!!!!! Good call!

[banditpowdercoat]

When I bought my tank, it was used. The prev owner siliconed EVERYTHING. and let me tell you, tht was a PITA. Not only does it leak if you happen to move the bulkhead at all, but it makes them almost impossible to remove. And, he siliconed every threaded PVC joint too. No teflon tape. So, you can imagine how I flt when some of the fittings I re-used broke, letting 30-50g onto my carpet. Not once, but TWICE!!!!. lesson learned LOL.