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19-05-2004, 01:55 AM | #1 |
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Need Advise on Sump Tank
Hello everyone , need a advice on Sump tank again. Okay , supposing if my overflow tube is 20mm , for a basic sump tank with a DSB Compartment , and only 1 Return Pump with attached to a Skimmer , say Weipro 2011 , what is the recommended power for pump eg, ????l/h I am afraid that the 20mm overflow tube is small , causing the pump to empty the water in sump faster than the overflow into the sump , at the same time worry that pump not strong enough for the skimmer?
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19-05-2004, 10:42 AM | #2 |
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Join Date: Oct 2002
Posts: 414
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20 mm = 2 cm tube? thats small ..... think u need a bigger tube
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19-05-2004, 07:37 PM | #3 |
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Hi,
I think your worry should not be sump getting emptied, I believe before that your tank already overflowed. The outflow doesnot rely on tube diameter alone, but also the head pressure at the outlet. On this I can not help to advice as it will depend on your situation. If I'm not mistaken you are using a 3' tank? That way you need about 2000L/H of water exchange after head pressure, thus before head, assuming 50% loss of flow, it will be about 4000 L/H for the circulation. If you need to divert this pump to a weipro 2011, it roughly need about 2000 L/H. Thus you need to have a pump that is 2000 + 4000 = 6000 L/H. Of course I am oversimplifying the calculation here. I am not a hydraulic expert but I am aware that the flow addition will be complicated by the use of diversion and throttling valve. I have one question for you, how is your tank drilled? Good luck. |
19-05-2004, 10:50 PM | #4 |
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ur main tk will not overflow if proper design n calculations is made.
think it would b better if u could give a really detailed one. e.g.1) tk size(both) 2) distance between the overflow pipe/box 2 the top of the main tk. 3) where u gonna place ur skimmer etc.... |
19-05-2004, 11:50 PM | #5 |
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Hi everyone , thanks.
Basically , 1)the main tank size is 30" x 18" x 18" sump tank size is 1.5ft by 1ft by 1ft 2) there is only one hole drilled 25mm on the left size bottom of tank and I have to get a pvc pipe to extend the length of the overflow pipe.(my tank overflow compartment is simlpy the pipe w/o the special overflow compartment like other tank) 3) Sump tank is basically a filter media compartment , a DSB Compartment and the return pump compartment. My idea is to connect a Weipro 2011 to the return pump , placed hanging on the main tank itself, which means that the final discharge of the water to main tank is through skimmer outlet , not the return pipe connected to return pump. Return pipe is 20mm . Can you guys advise if this is feasible? |
20-05-2004, 12:02 AM | #6 |
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r u goin 2 DIY ur sump or it has already being made 1??
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20-05-2004, 12:09 AM | #7 | |
SiaoGu Gives You Wings
Join Date: Jul 2001
Posts: 4,169
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yes it will work but is yr powerhead suitable for the headloss from the sump to the skimmer?
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