another DIY bulkhead Q?

[Fuegofish777]

I know all the parts needed to make them, just had a couple questions still. Wouldnt it be better to use a flattened gasket instead of the o-rings commonly used? i'm thinking there more contact with the rubber of the flatter shape? also what is everyones experience with them, do they hold up without leaking?
Thanks,
Sam

[Fuegofish777]

bump

[hooker18]

i used a diy bulkhead with a o-ring for my upstream refug. it works fine for me but there is only 5 gal of water in it.

[Fuegofish777]

did you put any silicone around it or just the o-ring?

[Fuegofish777]

*

[GuySmilie]

<a href=showthread.php?s=&postid=9959786#post9959786 target=_blank>Originally posted</a> by Fuegofish777
I know all the parts needed to make them, just had a couple questions still. Wouldnt it be better to use a flattened gasket instead of the o-rings commonly used? i'm thinking there more contact with the rubber of the flatter shape? also what is everyones experience with them, do they hold up without leaking?
Thanks,
Sam
The o-ring flattens when you tighten the connection.
My experience with them is positive.

[Fuegofish777]

Well, glad to hear they have worked for you. I get that the rings do flatten some, especially if you screw down tight, I just assumed that if I used a thicker flat gasket I might get a better seal. Does that sound accurate?

[impur]

I used wide flat gaskets seen here

http://img.photobucket.com/albums/v292/impur/P1120017.jpg

http://img.photobucket.com/albums/v292/impur/P1210040.jpg

[Fuegofish777]

Ya thats exactly what I was talking about. Thats the bulkhead for your overflow box right?

[impur]

Yep ;)