I have 2 bilige pumps 1 in the engine bay and 1 under the aft.how many gph should i get
99 maxum 2400 scr
The two sections are not connected. Get the larger gph you can find for the hose diameter you have. You could if inclined go to a larger hose but the thru hull fitting would need to be changed.
Agreed. Largest pump(s) that your plumbing will handle. Reasoning... A small pump may be OK to handle dewatering a bit of rainwater, but won’t help when really needed for other situations
Also consider how much 'head' (vertical feet of rise) between the pump and the outlet. 3 feet of head on a 500 gph bilge pump will decrease flow by 30%. 6 feet of head will decrease by 40%.
Also remember that the bilge pump line should have a loop that goes ABOVE the discharge. head is measured to the top of the loop, not the discharge through-hull.
Also consider how much 'head' (vertical feet of rise) between the pump and the outlet. 3 feet of head on a 500 gph bilge pump will decrease flow by 30%. 6 feet of head will decrease by 40%.
Also remember that the bilge pump line should have a loop that goes ABOVE the discharge. head is measured to the top of the loop, not the discharge through-hull.
Thank you very much for sharing this information! [emoji106]
Bilige pumps
Linear Mode
