I've seen it mentioned that it's a good idea to have TWO return pumps in the sump (since they will
eventually fail). As far a the plumbing goes would that involve two independent pvc lines back to two independent return
nozzles?? OR the two pumps pvc lines merging together into one pvc line on the way back to a single return nozzle??
eventually fail). As far a the plumbing goes would that involve two independent pvc lines back to two independent return
nozzles?? OR the two pumps pvc lines merging together into one pvc line on the way back to a single return nozzle??