Bulkheads

[yakfishin]

Due to limited cabinet door space, I need to link a couple of sumps together to get enough space and water volume for my equipment. I'm hoping to do so without the use of piping to link on bulkhead to another. I'm hoping to be able to just use a single bulkhead, however, I don't see bulkheads that have two rubber gaskets. They all seem to be designed to only have one 'wet' end. I have seen pictures of people linking sumps together with a single bulkhead, so I know it is possible. Do they just get another rubber gasket to seal both the flange and the nut side of the bulkhead?

[yakfishin]

Here is an example of what I'm talking about.

http://http://www.barraquatic.com/images/sump/sump9.jpg

[chimmike]

The nut side of the bulkhead isn't meant to be wet, it will leak through the threads, that's the thing. I'm not so sure I'd try what you're doing without some flex pipe between the tanks, honestly. like 5" of spa flex or something.

[yakfishin]

Yes, I see what you mean. I'll need to refigure my sump deminisions to accomadate the space needed between them. Glad I'm thinking and asking questions about all of this now instead of later. I think in the other plans that I see where people do this, they don't allow the water level in the second sump to get up level with the bulkhead, but in power failures and such my sump will get up to that level. Thanks.

[RokleM]

The nut side of the bulkhead isn't meant to be wet, it will leak through the threads, that's the thing. I'm not so sure I'd try what you're doing without some flex pipe between the tanks, honestly. like 5" of spa flex or something.

That's not correct. Bulkheads can be installed in either direction. The gasket is always installed on the opposite side of the nut.

Uniseals may be your answer.