I will look into it. It sounds like what I need.

"bruce" wrote in message
news:eHEoc.80760$kh4.4801694@attbi_s52...
Look for the book Aquatic Systems Engineering: Devices and How They
Function
by Pedro Ramon Escobal (also the software.) If goes into great detail on
how
to calculate how much flow you can get under what conditions hooked up
with
which fittings. GREAT SOURCE for this type of info. Unfort, my book is on
loan :.(

You might be able to find a link that has some of the calculations on the
web.
This is pretty technical.

Bruce


"PaulB" wrote in message
om...
I am planning on using external pumps so I hope that this will solve the
heat problem. Specifically two Quiet One Mod. 4000s.
In fact, I am hoping to avoid any submerged motors at all.

"Marc Levenson" wrote in message
...
As long as you have bulkheads linking the two together, the water
level
would be
fine. 1" should work, but 1.5" would be even better.

I'd suggest only one return pump, rather than two. Two adds more heat
to
the
water.

Marc


PaulB wrote:

I am planning the plumbing for an AGA 180 and I realized that the
plumbing
would be much simpler if I had two smaller sumps, one under each
overflow.
The problem is equalizing water height between the sumps. I was
thinking of
simply running some PVC pipe along the back of the cabinet between
bulkheads
in the sump.

Has anyone tried this, and do you think 1" PVC would be adequate?
Would
flex PVC or hose be better? If one pump failed there would be flow
of
about
300 GPH between the sumps.

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