Bulkheads

[snowmansnow]

Ok .... Been a while since I have installed bulkheads. The gasket goes on the OUTSIDE.... Correct?

B

 

[bdooley]

Inside where the water is going to be.

 

[wildernets]

Here is what I found.

http://www.3reef.com/forums/new-hobby/bulkhead-installation-tips-111422.html">http://www.3reef.com/forums/new-hobby/bulkhead-installation-tips-111422.html</a>

Edit: Flange side.

 

[acroholic]

The way I usually do it:

1. For installation inside a tank you place the flange side/gasket inside the tank (wet side).

2. For sumps, like for a return pump connection, you place the gasket/flange on the outside (dry side).

 

[grouper therapy]

Doesn't matter as long as the gasket is on the flange not the nut.

 

[acroholic]

grouper therapy;788285 wrote: Doesn't matter as long as the gasket is on the flange not the nut.

I usually have space considerations with external return pumps, so installing the flange on the outside frees up space outside the sump. I do mine that way out of habit more than anything else.

Also, for RR type tanks with drilled bottoms, keeping the flange/gasket on the inside (wet side), the weight on the flanged area from pipes, ect, is pushing down on the gasket, keeping the seal intact. Putting the flanged/gasket on the outside on a tank bottom, has the pipe work pushing against the seal.