Fresh Water Holding Tank Pump

Ray4713
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Posts: 9
Joined: Mon Sep 26, 2016 10:30 am

Fresh Water Holding Tank Pump

Postby Ray4713 » Wed Jul 05, 2017 8:31 am

My 1987 32' Sedan freshwater holding tank pump is not working properly. The pump is a Jabsco PAR 36950-1000. It kicks on for a short time then shuts off. Then it doesn't kick on again unless I turn the breaker off and then back on. At that point it will restart and run for a short time then stop. I have water in my holding tank and power present at the pump. Thinking it might be a faulty pressure switch ??? Anyone else had this issue or one similar? Any advice is appreciated.
1987 32' Sedan Flybridge "Brown Eyes"
Twin Chrysler 318s
Center Hill lake, TN

jralbert
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Posts: 418
Joined: Fri Jul 11, 2014 9:15 pm

Re: Fresh Water Holding Tank Pump

Postby jralbert » Wed Jul 05, 2017 10:41 am

Not even sure if they have a pressure switch. Something overheating? Motor? Jabsco has great tech people. And the units are easy to repair- usually. If you learn the cause, please post.
UPDATE: Sorry, I misread the question and goofily thought you were referring to waste pump. The words holding tank threw me off and I confused it with waste tank. Duh duh. See Jeff's reply below. of course they have pressure switch and as Jeff notes, ditch the one with the belt. I have one in the garage and if you insist on using it, it's yours for parts for just the shipping cost. It actually worked but was in need of alignment adjustment.

Accumulator a must for either type of FW pump
-joel-
former owner 1988 '32 FB Sedan
Chesapeake Bay
twin 318 / 240 hp
Potomac MD

barkleydave
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Posts: 341
Joined: Sat Jul 12, 2014 6:18 am
Location: Kentucky

Re: Fresh Water Holding Tank Pump

Postby barkleydave » Wed Jul 05, 2017 12:19 pm

I replaced with a sureflow 12 years ago no issues

Dave
1987 Marinette 29 FB Sedan
Retired Boat Accident UL and USCG trained investigator
Retired USCG Captain

Fastjeff
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Posts: 817
Joined: Sat Jul 12, 2014 5:06 am

Re: Fresh Water Holding Tank Pump

Postby Fastjeff » Thu Jul 06, 2017 5:59 pm

If that's one of those pumps with the cog belt drive, do yourself a HUGE favor and accidentally drop in over the side. Get a regular pump and install an accumulator along with it. This reduces the cycling of the pump (and your aggravation level). I made up a little 'pump skid' of plywood (a bottom and vertical piece) and mounted/ plumbed it all up before crawling into the wine cellar.

Jeff
"We live at the bottom of an ocean of air, not at the top." General Marvage Slatington

Ray4713
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Posts: 9
Joined: Mon Sep 26, 2016 10:30 am

Re: Fresh Water Holding Tank Pump

Postby Ray4713 » Fri Jul 07, 2017 7:16 am

Thanks for all the replies and advice. It is a belt driven pump . I plan to replace it with a sureflo aqua king II or equivalent. Fastjeff- thanks for the idea of pre mounting and plumbing on a piece of plywood before crawling in for the install.
1987 32' Sedan Flybridge "Brown Eyes"
Twin Chrysler 318s
Center Hill lake, TN

express28
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Posts: 34
Joined: Thu Aug 20, 2015 7:10 pm

Re: Fresh Water Holding Tank Pump

Postby express28 » Sun Jul 09, 2017 3:04 pm

Ray4713 --- If you are interested I still have the fresh water pump left from my 28. I know it's used but it always ran good and still does. It was the belt driven pump (Jabsco - Par Model 36950-1000). I'd let it go for $50.00. Jim B.


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