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Old 30-11-2018, 16:34   #1
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What are you using for domestic water pump

My fresh water pump is on the way out. 3rd one in 2 years. Current one was even made in America. What is everybody using and is reliable?
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Old 30-11-2018, 16:42   #2
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Re: What are you using for domestic water pump

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Old 30-11-2018, 16:46   #3
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Re: What are you using for domestic water pump

Most reliable are likely the diaphragm pumps, the belt driven ones, trying to remember the name, Jabsco maybe? However not enough flow for us, and it was a pulsating flow of course.
Iím using a Shurflo Aqua King, itís weak link is the switch that turns it on, installing a automotive relay I hope has solved that issue, just too many amps for the switch by itself.
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Old 30-11-2018, 16:50   #4
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Re: What are you using for domestic water pump

First, use a bladder pressure tank to reduce the. cycling of the pump.
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Old 30-11-2018, 17:16   #5
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Re: What are you using for domestic water pump

I'm sure everybody uses an accumulator with that style pump. How do you wire around the internal switch?
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Old 30-11-2018, 17:25   #6
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Re: What are you using for domestic water pump

I'm using a Jabsco pump and it is going strong after 2 years of full time cruising
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Old 30-11-2018, 17:29   #7
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Re: What are you using for domestic water pump

I also have a Jabsco. Only issue is the pressure valve needed replaced after 3 years of full time living
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Old 30-11-2018, 17:36   #8
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Re: What are you using for domestic water pump

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I also have a Jabsco. Only issue is the pressure valve needed replaced after 3 years of full time living
I feel that is cheap in the big picture
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Old 30-11-2018, 17:36   #9
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Re: What are you using for domestic water pump

On my last boat, I had no accumulator and my pumps generally lasted far less than a year. With an accumulator, I have never had one die in under a year. Could be a coincidence, but I doubt it.

Also, make sure you have a filter before the pump if there is any chance of debris in your fresh water line. Even a small amount of debris can lead to pump failure.
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Old 30-11-2018, 17:44   #10
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Re: What are you using for domestic water pump

Shurflo Aqua King II. On demand and no accumulator tank but does have a prefilter.

3gpm model and we live aboard. First one had the relay go out of whack and WM replaced it for free w/in a year. Current one is @ 6 months old - working fine.

We had one previously with an accumulator tank and it just kept leaking and running. Couldn't trace down the leak, so I just decided to do without and have not regretted it (yet!)
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Old 30-11-2018, 19:08   #11
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Re: What are you using for domestic water pump

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I'm sure everybody uses an accumulator with that style pump. How do you wire around the internal switch?


You donít wire around it, you use the switch to supply the current to close a relay, that way the relay is taking the big amps and the switch only has enough power going through it to energize the relay coil, which isnít much.
The Shurflo Aqua King II we use is the big one, I think 5 GPM and it pulls some serious amps, and the little micro switch isnít up to the task, I assume itís arcing that kills it.
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Old 30-11-2018, 19:14   #12
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Re: What are you using for domestic water pump

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Shurflo Aqua King II. On demand and no accumulator tank but does have a prefilter.



3gpm model and we live aboard. First one had the relay go out of whack and WM replaced it for free w/in a year. Current one is @ 6 months old - working fine.



We had one previously with an accumulator tank and it just kept leaking and running. Couldn't trace down the leak, so I just decided to do without and have not regretted it (yet!)


It doesnít have a relay, just a microswitch, to replace it Shurflo wants $50 or so for the whole head, however the number is on the switch and can be bought by itself for a buck or so a piece from many places.
The factory one is soldered on one terminal, however it doesnít have to be, a spade connector will work on both terminals
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Old 30-11-2018, 20:02   #13
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Re: What are you using for domestic water pump

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It doesnít have a relay, just a microswitch, to replace it Shurflo wants $50 or so for the whole head, however the number is on the switch and can be bought by itself for a buck or so a piece from many places.
The factory one is soldered on one terminal, however it doesnít have to be, a spade connector will work on both terminals

Good info - thanks a64. I will more than likely have to put that to use in the future.
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Old 30-11-2018, 20:32   #14
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Re: What are you using for domestic water pump

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My fresh water pump is on the way out. 3rd one in 2 years. Current one was even made in America. What is everybody using and is reliable?
I have used and worn out a lot of marine fresh water system pumps over the years.

As a chemical engineer I have worked with more pumps than most people have even seen, and the ones usually available for this service are a pretty sorry lot made to a price point, not to last.

Go to Marco pumps and get one of their gear pumps. Clean, small, well designed, and long lasting. They aren't the cheapest out there, but no need for a 2nd mortgage either.

I installed two of these in full time live aboard service three years ago, they just keep working.
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Old 30-11-2018, 21:03   #15
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Re: What are you using for domestic water pump

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My fresh water pump is on the way out. 3rd one in 2 years. Current one was even made in America. What is everybody using and is reliable?

More info needed.


Live aboard? Accumulator or no? What type of pump? Pressure setting?
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