Is it possible to run a electric
and a manual diaphram pump
in series. I want the conveince of electric
with a back-up pre-installed. This is for gray water
from shower/tub. I don't have room for a bilge
sump pump system. Boat
has been using a manual pump system for 20+ years but the pump needs replacing and the wife asked about electric. I like the idea of both, besides if I don't replace the manual one I'll need to re-do a wall as well.
S/V Continental Drift