Bulkheads Question

[makeme1098]

I am new to having a drilled tank and I have a question.
The tank has two 1-3/4" holes in the bottom. What size bulkheads should I get? I couldn't find 1-3/4" bulkheads so should I get 2" or 1-1/2"?

Thanks,

H

 

[jrgilles]

If you look on marinedepot, it says the hole size for the various bulkheads

http://www.marinedepot.com/ps_ViewI...rs&idProduct=FT1121&IdCategory=FIFTBHSB&tab=1

On that page, it says a 1" bulkhead needs a 1 3/4" hole drilled.

 

[makeme1098]

Cool, thanks.

 

[lvsuckerfish]

do you have schdule 40 or 80 bulk heads? I believe the size will change for the hole needing to be drilled. my 2" sch 40 fits in a 3 inch hole but my 2" sch80 would not fit.

 

[makeme1098]

I haven't purchased anything yet. I have never done the plumbing before so I want to make sure that I do it right. I'm just looking through the plumbing threads and looking at the photos to understand this better. Thank you very much for your advice.