Suggestions on buying bulkheads

[homebrewdude]

I am looking at savko.com for bulkheads.

My center overflow area has 4 holes drilled.
2 are drains and 2 are returns.

I would assume I do not need the schedule 80 type?
I can use the lightweight ones.

Is there a preference for the slip fit or thread??

[carlos_fb]

This link might help...

http://dslinux.dyndns.org/~denise/aq....html#overflow