Bilge Pump Recommendations? — Chris Craft Commander Club

30 Янв 2014 | Author: | No comments yet »
Chris-Craft 33 boat

Bilge Pump Recommendations?

I am replacing both the main and aft bilge pumps on our 42 Commander.  Someone appears to have started to do this, maybe as long as three years ago, and never finished.  Never finished means the bilge pumps were never hooked up.  They are cheap, 35-dollar water pumps that aren’t anything I would want to trust my boat to.  We burned one of them out while working on it.  Although the other is running fine for now, I don’t expect it to last.  We tested all our switches and found them to be working fine (both constant and automatic).  I need two new pumps.  What are the rest of you using?  I am familiar with flojet pumps from my previous work, and believe they are good quality pumps, but what model is best?  Our shower pump is a Jabsco diaphram pump (model 36680), but these are very expensive, and it seems somewhat noisy.

Replies to This Discussion

The diaphragm pumps are great for getting the last drops out of our keel as configured.  They are primarily for pressurizing water for the plumbing.  The higher volume bilge pumps exchange suction and pressure for capacity.  Less lift and larger hoses really improve their capacities.

Once winterized I generally place my 1/2hp float controlled sump pump in the bilge with the discharge fastened to the aft scupper.  So long as the scupper hose doesn’t give way it will get ahead.  Emptied a neighbors boat with it once.  Steel hull, perforated by rust and hanging by the dock lines.  Can’t beat a good 2500 gph sump pump.  Possible exception, a scared man with a bucket.

I have a Surflo 1500 on a float switch forward, under the hatch that’s next to the fwd head door. There are two Jabsco diaphragm pumps under the aft stateroom floors—one’s for the shower, the other goes to a hose that goes forward to the ER amidships. I also installed another Surflo 1500 on a mahogany crossmember that appears to have been built into the keel/bottom. It’s several inches higher than the fwd pump, and I’ve got it on a float switch that’s attached to a very loud alarm/strobe. That one’s my high water pump/alarm.


Interestingly, on Chris Craft Roamers they didn’t use anything but diaphragm bilge pumps. The switches are up a couple of feet above the normal bilge water level and are activated by pressure from an air bell via tubing that works a diaphragm. This keeps all pump-related electricity out of the bilge water. The ones for my Roamer are rated at 480gph.

I was just looking at the Whale Supersub, which looks like a neat option for boats with deep keels, like my Commander 42. Anybody tried those yet?

Check out Depco marine cataloge page 33

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