hazardous algae in the filters...

MitchM

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Jan 20, 2005
1,031
Nauticat 321 pilothouse 32 Erie PA
the notorious hazardous algae blooms have attacked the filters . the sea water pump is non functional. after cleaning the filters, still nothing working. looking at the blow up parts diagram and instructions on this par max jabsco water pump , i see one can dissemble this pump to 'clean the debris out' and also rebuild the pump. i suspect the algae debris has also gotten in side the par max jabsco . i'm wondering if it's worth rebuilding the pump -- or just go buy a new drop in...?
 
May 25, 2012
4,338
john alden caravelle 42 sturgeon bay, wis
par pump is designed for owner maintenance. easy, straight forward. they use to be cheap. now not cheap. it's all i've used for over fifty years.
 

SG

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Feb 11, 2017
1,670
J/Boat J/160 Annapolis
Did you winterize the engine up there in Erie?

You mean the freshwater pump is "packed" with algae?

Does it pump at all?

Why not disconnect the pump and flush it out?
 

MitchM

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Jan 20, 2005
1,031
Nauticat 321 pilothouse 32 Erie PA
yes, we surely do winterize engines. the engine's seawater pump is fine and as its filter bowl is cleaned each week end . the algae mainly collects in the slip, so only the 1st few minutes do algae get in to the engine's seawater pump. the par jabsco sea water pump is another story. even after cleaning its filter , pulling the pump and hose flushing it when it's reconnected to 12 v it does not pump ...
 

MitchM

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Jan 20, 2005
1,031
Nauticat 321 pilothouse 32 Erie PA
ie 'it does not pump at all...' NB it is the same model as the par jabsco freshwater pump that takes h 2 0 out of the water tanks. that one kicked the bucket at age 4, and it was not an algae problem. that pump was pumping thru a filter from the fresh water tanks .
 

SG

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Feb 11, 2017
1,670
J/Boat J/160 Annapolis
You're sure you have power to the pump?

It might be the pressure switch. See if you can get it cycle by bipassing the pressure switch.
 

MitchM

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Jan 20, 2005
1,031
Nauticat 321 pilothouse 32 Erie PA
12.7 v + into the pump, good ground. the pump is humming but not pumping any h 2 0. some of the jabscos have pinhole leaks and the symptom is water leaking out, but this one doesn't. this is the 2nd jabsco pump that's developed such a symptom...