SCWD

ReDDeviLs · December 2, 2004

anyone using SCWD with strong pump that goes up to 6000l/hr?

i read that SCWD cant be use with too strong a pump..

im using a OR3500 to drive it,but thinking of upgrading the OR3500 to OR6500.. wonder if my SCWD can work with it?

scarab · December 3, 2004

Yup, SCWD not advisable to run with high output pump coz it might cause the gear to wear out faster, or so it was claimed.

I'm running mine with an Eheim 1262 and was already told that the pump might be too big but so far so good.

minsmarine · December 3, 2004

Run b4 with Resun King4 4,800L/Hrs. So far, I find still slow. I believe could be able to run @ around 7,000L/Hr

ReDDeviLs · December 3, 2004

ok thx

yazid · December 3, 2004

SCWD Wave Machine. BLACK in color. Tee shaped device that oscillates flow from left to right without electricity. 3/4 inch id hose. DO NOT EXCEED 1400 GPH OR 5 PSI OR LESS THAN 50 GPH. Completely reef safe. Can be sumbersed for use with large power heads or used externally. The SCWD mounts inline with 3/4" tubing, the two ports alternate the output, the bottom port is the input. A great alternative to expensive electronic ball valves. The switching speed and current duration is dependent on the volume of water flowing through the SCWD. A great product with a full one year warranty.

1400 gallon/hour [uS] = 5,299.57652 liter/hour

Cheeng Su An · May 7, 2014

hi mates,

i am planning to installed new return pump RO AC pump 7000 LPH and together with 1" SCWD .

i need advice on few thing :

1)where u guys get the SCWD from ?? any LFS in SG selling 1" scwd?? or i must order it online ?

2)is it possible scwd connected to hard pipe ?

3) how is the product performance ? any problem ??

thx in advance

Firestarter · May 7, 2014

SCWD is old school technology. Its like using a Seio wavemaker or Weipro skimmer. I don't think anyone uses SCWD anymore. You're better off doing without it and using a Vortech / Tunze wavemaker instead.

dragoncube · May 7, 2014

hi mates,

i am planning to installed new return pump RO AC pump 7000 LPH and together with 1" SCWD .

i need advice on few thing :

1)where u guys get the SCWD from ?? any LFS in SG selling 1" scwd?? or i must order it online ?

2)is it possible scwd connected to hard pipe ?

3) how is the product performance ? any problem ??

thx in advance

I have not seen one before. I believe the principle is mechanical switching. I have read about it on Reefcentral before. It was connected using PVC pipes. The setup is pretty troublesome, as you need to redo your return pump setup with a lot of piping. It was never popular with the reefers here.

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