Fresh water design pressure.

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Fresh water design pressure.

July 10, 2014, 08:24:49 pm

Is there a method of determining what the design pressure of the fresh water sys. is?? I want to replace the old
shurflo pump with a newer one, but I can't find what the max. pressure should be. The newest one has a 55 psi cut off press. and I think that the old one is only 40 or 45 psi. How to verify this?? Thanks and have a great day ---- Fritz

Re: Fresh water design pressure.

Reply #1 – July 10, 2014, 08:49:05 pm

PEX tubing is pressure tested at 100 psi or 1.5x normal operating pressure. So normal operating pressure is about 60 psi or a bit more. I would think that 55 psi would be OK. You could always put a pressure regulator downstream of the pump. I use a 40 psi regulator when connected to city water.

Roger

Re: Fresh water design pressure.

Reply #2 – July 11, 2014, 09:10:23 am

I installed a 65 max PSI water pump three years ago. No problems. Needed the higher pressure for the RO system.

Roland

Re: Fresh water design pressure.

Reply #3 – July 11, 2014, 11:01:22 am

Thanks guys, I'm going with the 55psi pump. Have a great day ---- Fritz

Re: Fresh water design pressure.

Reply #4 – July 13, 2014, 02:07:46 pm

Has any one got a REMCO 55AQUAJET-RV 60 psi- 5.3 gpm,// water pump. Looking at replacing my old water pump with this one?

?? Any other pump suggestions???

Re: Fresh water design pressure.

Reply #5 – July 13, 2014, 02:32:46 pm

Dan I think the pump in the link I posted in another thread (quoted below) is the same pun you are asking about. If so, I put one in a year or so ago and have been happy with it so far. A little noisier than I would like, but that might be my fault... I made quarter-twenty mounting studs and the instructions said to use number 10 screws to mount (read them afterwards

) so that the pump would be free to move on its rubber grommets. I don't know how much difference that made... one of these days if I hear someone elses installation of this pump, I will redo my mount if their's is significantly quieter.
Don

Quote from: acousticart – July 11, 2014, 12:01:44 pm

I replaced our FlowJet with an Aquajet 55 ARV;
http://www.freshwatersystems.com/p-1070-remco-aquajet-arv-5503-av15-b636-rv-pump-53-gpm-12vdc.aspx?utm_source=Googlebase&utm_medium=Feed&utm_campaign=Product&utm_term=5503-AV15-B636&gclid=CNTQ7PzOvb8CFQiDfgodFokAjQ
We have been happy with it so far...
Don

Quote from: Dan J. Stansel – July 13, 2014, 02:07:46 pm

Has any one got a REMCO 55AQUAJET-RV 60 psi- 5.3 gpm,// water pump. Looking at replacing my old water pump with this one??? Any other pump suggestions???

Re: Fresh water design pressure.

Reply #6 – July 13, 2014, 02:39:08 pm

Don: After your comments about noisy and reviews say same thing I may go with the Shurflo 4048
153 E75 High Flow. About same price.

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Fresh water design pressure.

July 10, 2014, 08:24:49 pm

Re: Fresh water design pressure.

Reply #1 – July 10, 2014, 08:49:05 pm

Re: Fresh water design pressure.

Reply #2 – July 11, 2014, 09:10:23 am

Re: Fresh water design pressure.

Reply #3 – July 11, 2014, 11:01:22 am

Re: Fresh water design pressure.

Reply #4 – July 13, 2014, 02:07:46 pm

Re: Fresh water design pressure.

Reply #5 – July 13, 2014, 02:32:46 pm

Re: Fresh water design pressure.

Reply #6 – July 13, 2014, 02:39:08 pm

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