Jabsco Macerator Failures...

[Stu Jackson]

Our Jabsco lasted for 26 years with weekly use. In reading reviews on online suppliers, not too many folks ar ehappy with these units. In looking at the construction methods, it appears the Shurflo might have a better pump connction method than Jabsco. Mine finally bit the dust, or the slotted screw at the back is totally inaccessible, so I'll try a Shurflo. Physical conditions do not permit the Sealand to fit (darn!).

[Hudson Force]

Originally Posted by um saudade

The long bolts (10-32 I think, in the smaller pumps) that hold everything together on the Jabsco pump are made of brass. Replace with stainless and they hang together much longer.............

I'm all for this good advice, but the originals don't look like brass,- definitely a bright silver color.

[bill good]

Lavac is the reason. I removed the Jabsco Macerators & fitted diaphram pumps & the problem went away!! I suspect the rubber impellors were sucked backways!!. The macerators tested 100% until the real work was asked of it.

Regards Bill

[67Therapy]

I recently rebuilt our Jabsco. How did string find it's way into the head?!?! No one around here is fessing up.
While doing so, I found this hilarious video comparison test of Whale vs SeaLand.
The new litmus test for ANY gear around our boat is, "Yeah? Well can it handle 16 sheets of toilet paper?!" Watch and you'll understand!

https://www.youtube.com/watch?v=_G3GXzQnyzY

[jollyswagman]

The problem of the brass bolts corroding can easily be remedied, the threads are 2BA which is very close to the same pitch as metric, use a 5mm metric tap to re tap the threads (both in motor and pump body) then replace bolts with standard stainless steel threaded rod.