You generally don't want to have two bilge
pumps hooked up to the same through-hull.
JRP's suggestion is a good one, where the small
pump is considered a "maintenance" pump, and the larger one, with the high volume is a dewatering pump. Ideally, the larger pump should have a float switch located a few inches above the maintenance pump one and have a high-water alarm connect to the switch as well.
__________________
Sailingdog
Telstar 28
New England
You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.
—Cpt. Mal Reynolds, Serenity (edited)
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