I have a 24V Whale Gulper High Flow pump that I use to drain the shower
1) A tip if you have one of these pumps: install a diverter valve and a reasonable length of suction hose on the inlet side. This allows you to use these pumps to drain anywhere on board. For example: blocked sink? No problem.
2) My 2nd gulper has just failed - a horrible grinding noise
. On inspection
, the gears are grinding themselves to bits. This is the same failure mode as the last unit. The unit I have already has brass or bronze gears - no nylon in sight.
I'm not aware of any reason why this should have happened. They were installed correctly. They were dry. There are no valves on the outlet that would stress the unit if accidentally closed. There were no obstructions or blockages. There are only two people on board and, from memory, both units failed after not much more than a year of use.
To their credit, Whale replaced the first one. I'll be calling them tomorrow to see if they'll replace the replacement. Fingers crossed!