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Old 10-21-2015, 10:30 PM   #15
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Did you go for the 4008 or 4048 pump perhaps?

SHURFLO® REVOLUTION™ Pump 12 VDC 3.0 GPM | REVOLUTION™ 4008 Pumps

SHURFLO 4048 High Flow Pump | SHURFLO 4048 High Flow Pump

Are you happy with the pressure and water flow?

I have a Flying Cloud 20' with smaller tanks, so minimizing flow is important.

Thanks

Very pleased with the results.Switched the shower head to a Oxygenetixs so we have more pressure with less water usage.


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Old 10-21-2015, 10:54 PM   #16
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Is there such thing as a silent water pump?

I installed Shurflo Whisper King pumps in both trailers. Almost silent. I put a loop in the output hose and make sure that it doesn't touch anything so that there is nothing to bang against. If you want to get really silent, you can fashion a rubber mount. I didn't bother.


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Old 10-22-2015, 03:32 AM   #17
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I installed Shurflo Whisper King pumps in both trailers. Almost silent. I put a loop in the output hose and make sure that it doesn't touch anything so that there is nothing to bang against. If you want to get really silent, you can fashion a rubber mount. I didn't bother.

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Thanks Jim, it looks like that Whisper King pump has been discontinued. Do you happen to know its GPM rating? I see one old spec. online for 2.0 GPM.

Thanks also for the guidance on the output loop and rubber mount, both of which I am in the process of assessing on the 20-footer thread.

Peter
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Old 10-22-2015, 03:33 AM   #18
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Very pleased with the results.Switched the shower head to a Oxygenetixs so we have more pressure with less water usage.
. . .
Thanks I will check out that shower head for our Flying Cloud 20.
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Old 10-22-2015, 06:50 AM   #19
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Thanks I will check out that shower head for our Flying Cloud 20.
It's one of the best additions I've made. It only uses .75 gallons/minute yet feels like much , much more.
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Old 10-22-2015, 09:06 AM   #20
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No matter your pump choice, a flexible connection on both sides is the key to quieting things!
Rigid lines transmit lots of vibrations to surrounding surfaces!
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Old 10-22-2015, 09:59 AM   #21
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I added some foam pipe insulation around some of the pipes near the water pump that were butting on each other, or pipes touching drain pipes or pipes contacting the subfloor. I think it helped.

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Old 10-22-2015, 10:12 AM   #22
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Another solution is to add an accumulator at any point in the system....
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Old 10-22-2015, 05:02 PM   #23
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Yes, some folks add an RV accumulator tank (sometimes called a pressure tank in larger operations) to smooth out the flow and reduce noise.



http://www.amazon.com/SHURflo-182-20.../dp/B000N9VF6Q


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Old 10-23-2015, 12:03 AM   #24
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Peter
I have no idea what the GPM figure is on the Whisper King. Works great for us in both trailers. Cheers, Jim


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Old 10-24-2015, 05:37 AM   #25
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Peter
I have no idea what the GPM figure is on the Whisper King. Works great for us in both trailers. Cheers, Jim
. . .
Thanks Jim, curious whether you have to be careful using a second faucet while someone is taking a shower? That should provide a clue about the capacity of your pump. In our smaller FC20, with the existing pump being 4 GPM, a new 2 GPM pump would in effect double the size of our fresh water tank. A great plus, with the fringe benefit of encouraging a water conservation attitude in general.

Add in a new lower-flow shower head like the one suggested by Moflash and Wayne&Sam, and the combined water economies would be useful in the boondocks.

PS -- On long ocean voyages in small boats, water conservation is paramount, so foot pumps are the preferred method of getting water from the tank. No pressurized supply lines at all. It is amazing how little water one needs, especially if the flow can be governed by small motions of a foot. Obviously this would not work so well for a warm-water shower in an RV, but it gets one thinking: "how could I use less water right now?"

PS2 -- Here is the Oxygenics Fury model RV shower head:

http://www.oxygenics.com/products/fury-handheld/#
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Old 10-24-2015, 07:32 AM   #26
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Otra15, I can't tell from the graphic, does the round head unscrew? I had a shower head that did, and it was easy to clean out water deposits. I now have one that doesn't, and I have to soak it in vinegar, and it still doesn't clear it as well as I would like.
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Old 10-24-2015, 08:43 AM   #27
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Not sure. Maybe call the 800 number? I won't buy one until next Spring probably.

I assume there is a screw in the middle of the spray face, but maybe it is all press-fitted at the factory as you mention. It is probably pretty complicated inside, so maybe they want to prevent disassembly?
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Old 10-24-2015, 11:18 AM   #28
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In our smaller FC20, with the existing pump being 4 GPM, a new 2 GPM pump would in effect double the size of our fresh water tank. A great plus, with the fringe benefit of encouraging a water conservation attitude in general.
The pumping capacity of the pump you install has nothing to do with the amount of water you use! A 2 GPM pump will not effectively double the size of the fresh water tank.

The amount of water you use is determined by the outlet (such as a shower or sink strainer aerator). All a larger capacity pump simply allows is to use two or more such outlets at the same time.

If a 4 gpm pump is installed and operating a 1 gpm shower, all that will flow and be used is 1 gpm. If a 2 gpm pump is installed and operating the same 1 gpm shower, all that will flow and used is 1 gpm, same as the other pump.

If you fill a sink to wash dishes with one gal of water, it makes no difference if it is pumped with a 2 gpm or a 4 gpm or a 6 gpm pump. It still is only one gal of water.
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