C CHOMPERS Silver Tier VIP MFK Member Apr 28, 2006 6,438 64 1,205 Sunnyvale Trailer Park Apr 8, 2009 #11 The overflows need to flow about double in case there is a blockage in one (dead fish, etc.).
B Burko Feeder Fish MFK Member Sep 24, 2008 451 1 0 Australia Apr 8, 2009 #12 "because the overflows were draining more than double the pump output." Potentially yes but actual flow should be determined via the return pump.
"because the overflows were draining more than double the pump output." Potentially yes but actual flow should be determined via the return pump.