how many drains???

[Chago09]

I am planning on drilling my 50 gallon and adding a standpipe for the drain. If I drill a 1.5" hole and use all 1.5" pvc piping do I need two drains???? I will be using the quite one 4000 pump which pumps 1017gph but with my 4 feet of head it will probably only pump about 600-700 gph. What you guys think???

 

[shag26272]

I think that is too much flow through your sump. I would shoot for a 600 GPH pump and a 1 inch bulkhead with 1.25 standpipe.

 

[magdelan]

<a href=showthread.php?s=&postid=10202937#post10202937 target=_blank>Originally posted</a> by shag26272
I think that is too much flow through your sump. I would shoot for a 600 GPH pump and a 1 inch bulkhead with 1.25 standpipe.

Is there a rule of thumb when figuring out what size pipe and bulkhead to use when determining how much flow you want?

 

[shag26272]

Use either powerheads or a closed loop for flow, use your overflow/return pump to get water to and from your sump for contact time with your skimmer/fuge.

 

[Chago09]

so if I used a ball valve to slow down my pump a bit would that work???? or does that only put added preasure on my pump??

 

[shag26272]

most pumps can hande this just fine. Once your new plumbing slimes over you can probabaly open the valve more.