Display tank overflowing

swallowbird

New Member
My display tank overflows a bit I have a 1 inch pvc overflow system and my return is 750gph with flexi tube, should I add another overflow to it so it drains faster?
 

snakeblitz33

Well-Known Member
Quote:
Originally Posted by Mr. Limpid http:///t/394303/display-tank-overflowing#post_3509461
you have to big of a pump for a 55gal tank. Go to a 385gph.
Agreed. A 55g doesn't need that much flow through a sump - a mag drive 5 is max, and will probably have to be dialed down. A mag Drive 3 is probably as minimum as I would go and it wouldn't need to be dialed back.
Remember, flow needs to come from powerheads in the display tank. Your sump is there for your equipment to clean and purify your water. If water is rushing through your sump really fast, then there is not as much purifying taking place. Make sense?
 
S

saxman

Guest
As mentioned, you pump is too "hot" for your O/F to keep up. However, there are a few things you can do to remedy this without buying a new pump.
Is your return split, or is it a single-ended return? If you add a "Y" and split the return, or even better, split your return and run it thru a SCWD to alternate the flow.
Since you're using flex tube (I plumb all of our setups this way), you can add a bleed valve back to the sump from your return like this:

This configuration allows you to bleed any excess flow back to your sump. You can easily tune your pump's return rate to your O/F rate this way, and if you ever want to run a fuge or other equipment, this may be enuff flow to do so, depending on what you bleed off. This configuration doesn't restrict your pump, so no worries there (even tho centrifugal pumps can be restricted, I don't like to do it).
Just some options...HTH
 
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