The non-scientific answer would be serial. In a parallel configuration you risk backflow and possibly pump damage if one pump is pumping harder than the other. If my memory serves me right you'll get better results through parallel, but the risks outweigh the benifits. Essentially in series you'll be keeping the flow rate in GPH of the stronger pump, but adding the head rating of the two, so if you have two pumps that pump 250 GPH at 5ft head, you'll be pumping 250 GPH at 10ft head in the new config (its been a while, so I may be wrong). There was a big discussion on this a few months back, so you might want to search. The other nice benifit of series is that if one blows up, you wont lose flow since the other will still be working ... in parallel most of your flow will flow back through the parallel loop and the rest of your system will be nearly stagnant leading to flaming CPU death.
Anybody else have better input?
__________________
#!/bin/sh {who;} {last;} {pause;} {grep;} {touch;} {unzip;} mount /dev/girl -t {wet;} {fsck;} {fsck;} {fsck;} {fsck;} echo yes yes yes {yes;} umount {/dev/girl;zip;} rm -rf {wet.spot;} {sleep;} finger: permission denied
|