I'm looking for a bilge pump that has discharge upto 15m head. Some of the companies that I looked at are Seaflo (3700gph, 12V) and Rule (4000gph, 12V).

I plan to connect this to solar power and float switch.

Has anybody had an experience with these pumps? If yes, what has been their performance overall (reliability, water discharge as expected)? Would be good to know other reputed bilge pump manufacturers as well.