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The Norfolk Broads Forum / Broads Boat Owners Q & A / Waterpump Question?
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Posted By Discussion Topic: Waterpump Question?

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Simo
Sep-05-2017 @ 8:37 PM                           Permalink
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Hi all - another question for you - my waterpump has now packed up on our second trip on our boat last week! It had  power up to it so l have put it down to the pump its self! It is a shurflo 2095-423-243, which is a 13psi 10.6 l/min 3.6 model, that is noe discontinued!
I am looking at a replacement that is the 2095-403-143 which is a 10.6 l/min 30psi 4 amp model. Do you forsee any problem with this , i would not have to alter anything as it would be a straight swap, the only difference i can see is the psi rating, but there is an adjusting screw on the pressure switch so am hoping i can just turn it down a bit!
On the sureflo site they show a replacement pump for mine that is a new more expensive model but that one is also 30psi rated!!

Calixte
Sep-05-2017 @ 9:07 PM                           Permalink
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"Hi" Simo
If you pull up " Leisure Direct" you will see that you can pick up a new pump for £48.00 and it only has 20psi which you can adjust if required.
Good Luck. Smile

Kindest Regards Mike

Simo
Sep-05-2017 @ 9:45 PM                           Permalink
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Cheers bud - have a look now ??

Captain-Joshie
Sep-05-2017 @ 9:52 PM                           Permalink
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Hi Simo

Wow! a jump from 13psi to 30psi more than twice the pressure, I would expect problems from leaking joint and maybe the calarifier (hot water tank) blowing off the excess pressure.

I would look to getting a pump very close to 13psi, the adjusters on the pumps are really for the manufacturer to just fine tune the pumps and won't change it that much.

If your down south try Brian Wards, they are really helpful. Only other gem of wisdom I can impart is don't buy a Johnson water pump! I've had a few and ALL have gone faulty!!! I now have a Jabsco.

John.

Kind regards, John(Captain
Joshie), Jo & Toby.
'Braveheart' L68 Broom
30/Skipper

Simo
Sep-05-2017 @ 10:09 PM                           Permalink
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Yep was worried about the jump! Only thing is the 20 psi models have a lower flow rate than my old one - and the manufactures recomended replacement is a 30psi!
http://shurflo.com/images/files/Pump_Conversion_Chart/Marine-Pump-Conversion-Chart.pdf

Regulo
Sep-05-2017 @ 10:16 PM                           Permalink
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An older tank could give trouble, as could fittings and pipework. I don't see why manufacturers think 30 psi is necessary on boats, 15 to 20 is plenty, unless you're on a superyacht with 6 bathrooms in simultaneous use!

Regards, Ray.

Whatever happens now, I'm blaming it on Brexit. Everyone else is!


This message was edited by Regulo on Sep-5-17 @ 10:18 PM

Steve51
Sep-06-2017 @ 8:05 AM                           Permalink
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I wouldn't have thought 30 psi was necessary, but that is only 2 bar. PRVs fitted to calorifiers are usually set to a minimum of 3 bar which is over 43 psi. It's also only one third of the recommended maximum working pressure for hot water (John Guest push fit fittings). Your biggest problem will be keeping the shower head on it's hook!  Smile

Steve. CM1 and NR12

Simo
Sep-09-2017 @ 7:47 AM                           Permalink
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Steve - do you know what pump you have fitted to yours ?

Simo
Sep-23-2017 @ 2:04 PM                           Permalink
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Little update - have ordered a 20psi 7/lpm replacement, and will swap it next weekend fingers crossed! Will update on peformance when done incase anyone looking to dp similar! ??

Steve51
Sep-23-2017 @ 3:12 PM                           Permalink
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Sorry Simon, I missed your previous post. Ours has a Jabsco 0.7 bar. Not stunning performance, but adequate.

Steve. CM1 and NR12

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