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Old 02-04-2019, 08:40 PM   #1
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Default wastepump alternatives

Currently my 2300scr has a Jabsco 18590 wastepump that starts leaking the contents into the bilge when the tank reaches 25% capacity (yuck).

so i was about to order a new one when i stumbled upon these reviews:

https://www.google.com/shopping/prod...HXOcByYQqSQILQ

the there's literally not one positive review. the gist of 99% of the reviews is that the pump usually starts failing within 2 years due to corroded bolts.

can anyone confirm this?

and if that pump is so horrible what would guys advice as an alternative (with same diameters)
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Old 02-04-2019, 10:02 PM   #2
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found 3 alternatives:

SPX Flow 'Johnson Pump' -> 145.00
Sea Flo -> 119.95
Allpa macerator -> 142.00

are any of these any better?

the Jabsco goes for around 260.00 (i noticed that there are also some positives reviews... but still worried about the amount of bad ones)
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Old 02-05-2019, 12:58 PM   #3
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It is my belief that the failed pumps are a result of improper winterization. Overboard discharge is not common in the US. Most people claim there is no need to winterize it since it was used. However the discharge line from the holding tank goes from the bottom of the tank to the pump. Gravity fills this. Winterizing the tank doesn't displace the contents of the discharge line between the tank and pump.

When winter freezing occurs, the contents freeze, expand, then the seals are compromised.

To properly winterize the tank, the contents need to be either pumped or dumped. Then filled with propylene glycol (antifreeze). Then, when the boat is hauled, I place a large bucket under the discharge and discharge until antifreeze is discharged. This will ensure no complications in the spring.
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Old 02-05-2019, 01:01 PM   #4
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well that was my thought to begin with. but then reading so many negative reviews about corrosion i started thinking otherwise.

oh well.. ill go for one of the cheaper brands for now and winterize the hell out of it comming years and well see.
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Old 02-05-2019, 01:32 PM   #5
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"Which came first, the chicken or the egg?"

I would assume the leaking caused the corrosion, not the other way around.
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