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Low Water Pressure

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Joe Van Loan:
I had the same problem when our 2006 Patriot was new.  I think you might mean that you have low flow from the shower.  If you have water filters built in, check them first.  I also bought an adjustable external water pressure regulator and guage at Sam's Club (also available at Camping World for a little more money) and keep it set at 65 psi.  I had to tighten a couple of hose clamps to stop drips, but the higher pressure helps.  

Many shower heads come with a flow reducer to save water.  You might try removing the head from the hose and see if your's has one.  If so try it with it removed and see if that helps.

Finally I replaced the check valve at the end of the hose inside the plumbing bay.  The original had a very small opening, about 1/4 inch.  I bought a Watts residential check valve at Menards with a 1/2 or 3/4 inch fitting.  The opening was at least 5/8 inch.  That made a big difference in the flow at the shower.  

Joel Ashley:
A thing as simple as turning on the pump while on city water can boost volume.  Regulators are designed to protect RVs from pressures beyond what they're designed for, so keep that in mind.  But I have to agree water filters can really stifle pressure, and in my mind should be specific to drinking water faucets and ice makers only.

Bill Sprague:

--- Quote from: Richard And Babs Ames ---If your water problem only occurse when hooked to "city" water. We removed the http://legacy.shurflo.com/pages/RV/rv_product_sum/rv_sum_docs/water_sys_access/wallm_pressure_50PSIchrome.html  Shur Flow and replaced it with a 1/2 inch check valve and whole house water pressure regulator and got increased volume.
--- End quote ---
Richard, I bought the parts to do the same thing, but havn't started the project yet.  Can you post a picture?

Richard And Babs Ames:
I can e mail you a picture and will try to post.  I actually took the middle out of the Surflo housing and mounted it backwards for a spacer for the check valve.

Works like this for me Hose to city water hooks to a particulate water filter the whole house Watts prressure regulater then a ten foot water hose to at as an expansion chamber to the city water hook up point on the MH where the check valve is. The only permanant thing is the check valve.

Richard And Babs Ames:
The 1/2 inch plastic check valve fit the quest fitting and the Surflo housing with the center drilled out made a perfect spacer to attach an al plate to and add the hose bib.

To prevent water hammer I added a 10 ft normal water supply hose from the regulator to the check valve. You could also use an expansion valve. My plumber also reccomended a particulate filter before the Watts pressure regulator.

I have used this set up for 5 years with great results.

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