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Old 06-16-2022, 07:50 AM   #1
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Getting max water pressure in RV's

I have a Fleetwood Rev LE 2009. I love hot showers and looking out I will be snow-birding this coming winter in the RV.



Who sells the max pressure water pump. If you upgraded or have any tips that would be useful to getting the water flow higher than 3 GPM. Thanks and happy camping.
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Old 06-16-2022, 09:53 AM   #2
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Usually the max pressure they recommend is bet 55 and 60.- With that I'd have a nice shower but I still reduce it closer to 50 to be on the safe side. If you get a pump that draws more power you might need to install a relay. Sorry, I don't have specific pump recommendations but I know there's lots out there- just do a search.
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Old 06-16-2022, 10:15 AM   #3
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Need to get rid of the flow restrictors in the shower handle.
Some are in the end of hose, some inside the handle, some can not be removed so you just enlarge them using a 1/4" drill bit

Then reevaluate if upgraded pump needed.
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Old 06-16-2022, 11:15 AM   #4
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Excellent point^^
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Old 06-16-2022, 11:56 AM   #5
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Your shower flows about 1.6 per minute. Like they said , start at the shower head. Pressure will add some volume but not as much as restrictions take from you.
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Old 06-16-2022, 06:43 PM   #6
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Your Revolution should have come with the good Aquatec water pump, easily capable of 70+ psi and 5 gpm, but no doubt factory-set to around 45 psi. I ran mine at 55-60. There is an adjustment screw on the pump head.


However, most likely all you need do is remove the flow restrictor as others have already advised. Try that first. Oh, and make sure your onboard water filter is clean and you aren't using an ultra-fine filter. The filter can slow the flow dramatically no matter how powerful the pump.
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Old 06-17-2022, 05:42 AM   #7
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How is your water heated?

- If with a water heater, you will run out of hot water faster at higher flow rates, particularly if you have the 6-gallon size.
- If with a hydronic system, you might get a drop in temperature at high flow rates.
- If with a point of use heater, if it's rated for the flow you want, you should be fine.
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Old 06-17-2022, 06:45 AM   #8
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I swapped out the OEM shower head for an oxygenics..... much better flow.https://oxygenics.com/products/fury-rv-handheld/
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Old 06-17-2022, 07:41 AM   #9
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Something else to keep in mind. If you are connected to city water, and you want to boose that pressure, if and when the pump comes on it will be drawing water from the tank only. So you need to keep the tank filled.
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Old 06-17-2022, 12:22 PM   #10
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+1 if you have original RV shower head it no comparison.. Not sure of my model but its not the top one in link was at Wal-Mart RV on sale.$30. Works like magic on RV pump. I don't have some fancy pump or very high pressure I can't my pipes are polybutylene.
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I swapped out the OEM shower head for an oxygenics..... much better flow.https://oxygenics.com/products/fury-rv-handheld/
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Old 06-20-2022, 05:31 PM   #11
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Quote:
Originally Posted by PanJH View Post
I swapped out the OEM shower head for an oxygenics..... much better flow.https://oxygenics.com/products/fury-rv-handheld/

I was curious why i couldn't get flow like at home so i took the oxygenics off and put it on my main bathroom shower and OMG the force of the shower verged on painfull. This experiment told me it wasn't the shower head preventing better flow.

I've looked for anything that would restrict flow in the mixer, head and removed as needed.

Now i'm guessing it could be the smaller diameter lines thru out the RV.
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Old 06-20-2022, 05:53 PM   #12
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It's not the lines in the RV - those will be 1/2" PEX which is more than capable of flowing 10gpm. If it is like the faucet I just removed from my shower, the restriction is IN THE FAUCET itself.

Look at the faucet and see if where the hose to the showerhead connects, it looks like there is a much smaller tube between the threads and the body of the showerhead. This is a "anti siphon" design which inside that tube - even though it is a 1/2" threaded connection - that hole is only about 1/8" diameter. That's only about 10% of the total flow capacity, and MASSIVELY restricts what you are able to get from the shower.

Because of the "anti-siphon" part, it also has a little rubber flap in it and when you shut the water off, everything in the tube drains back down and OUT OF THE GUTS OF THE FAUCET..... Which on mine meant it was a leak into a void space below my shower and into my storage bin! It had been that way from the factory, 20 years of leaking that I only *just* found and fixed.

What a dumb design!

This is the replacement faucet I used - I had to get a little creative with a set of "faucet thread extenders" from Home Depot which are designed for granite counters (or similar thick materials) b/c the brass just didn't give enough length. But I'm SUPER happy with this thermostatic faucet - it flows like a firehose now with the Oxygenics head - it's nearly too much!

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

For extra oomph in the water system, you may also want to install an accumulator tank and add a bit of pressure to that (it has an air bladder in it) that will provide a cushion to the water pump's work, evening out the pulses.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
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Old 06-20-2022, 08:36 PM   #13
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Quote:
Originally Posted by PanJH View Post
I swapped out the OEM shower head for an oxygenics..... much better flow.https://oxygenics.com/products/fury-rv-handheld/

That design appears to increase water pressure while reducing total flow, which is possible by the much smaller water holes in the shower head.
I compared one to my OEM Moen shower head and Moen actually reduced total flow more than the oxygenenics brand; however felt pressure is less through the much larger nozzles in the Moen shower head.
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