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- Aug 11, 2013
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After one of my two COR20 return pumps failed, I did a flow comparison with a replacement return pump (Sicce Syncra SDC 7.0) on my Red Sea S-1000. Unfortunately, I do not have flow sensors, so most of the measurements/comparisons are using a 100% open return drain valve. Also, these comparisons are using dual return pumps with one COR20 and one SDC 7.0.
I was interested to note the following:
1. The COR20 did not output any additional flow past 50%
2. The SDC 7.0 continued to incrementally increase flow all of the way to 100%. It appears that it handles the minor/major piping losses better.
3. With the COR20 anywhere between 50% and 100%, and the SDC 7.0 at 50%, the return drain valve needed to be opened 100% and maintained a perfect level in the overflow, which is maxing out the overflow.
4. The COR20 at 50% and the SDC 7.0 at 40%, with the return drain opened 100% maintained a perfect level in the overflow. Again, maxing out the overflow.
I was a little confused seeing the COR20s max output at 50% and not increase even at 100%. I assume it's due to the S-1000 dual 3/4 return piping restriction.
The SDC 7.0 is LOUD... any idea how dual Varios-4 pumps might perform? I'm wondering if the 3/4" piping is choking out the larger pumps and if a smaller pump would perform similar.
I was interested to note the following:
1. The COR20 did not output any additional flow past 50%
2. The SDC 7.0 continued to incrementally increase flow all of the way to 100%. It appears that it handles the minor/major piping losses better.
3. With the COR20 anywhere between 50% and 100%, and the SDC 7.0 at 50%, the return drain valve needed to be opened 100% and maintained a perfect level in the overflow, which is maxing out the overflow.
4. The COR20 at 50% and the SDC 7.0 at 40%, with the return drain opened 100% maintained a perfect level in the overflow. Again, maxing out the overflow.
I was a little confused seeing the COR20s max output at 50% and not increase even at 100%. I assume it's due to the S-1000 dual 3/4 return piping restriction.
The SDC 7.0 is LOUD... any idea how dual Varios-4 pumps might perform? I'm wondering if the 3/4" piping is choking out the larger pumps and if a smaller pump would perform similar.