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 > Is there a quiet water pump?

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kfp673

PA

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Posted: 09/08/21 05:57am Link  |  Quote  |  Print  |  Notify Moderator

We have been increasing the amount of boondock camping we are doing so I started carrying a 35 gallon water tank in the truck. Currently using a drill pump with intentions to buy a 12V transfer pump some time soon. But that got me thinking... The water pump in our trailer is the typical loud rattling pump. Not a big deal during the da, but a toilet flush in the middle of the night will wake me up (pump is in a compartment in main bedroom). I figured there must be a "high end" and obviously more expensive pump I could install in the camper and then repurpose the existing pump to become my transfer / backup. Is there such an animal? I'm happy to pay a premium for something smooth and relatively quiet. Any suggestions?

Thanks!

JimK-NY

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Posted: 09/08/21 06:24am Link  |  Quote  |  Print  |  Notify Moderator

Typically it is not the pump that makes the noise, at least not for me. It is the vibration and knocking sounds from the supply lines. That is best fixed with some insulation material.

JRscooby

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Posted: 09/08/21 06:34am Link  |  Quote  |  Print  |  Notify Moderator

Just trumping here, but you might want to look at the mounting of your existing pump. If mounted solid to a surface, the vibrations of the pump will act just like a magnet in a speaker. Any flex in the lines hooked to pump? If not, the lines can carry the noise, vibrate another "speaker"
Stand of and look at your rig from the side. Is your fresh water tank below the floor of trailer? Is trailer floor below floor of TV bed? Trailer have a gravity fill for the tank, where you can pour water in, or must it be under pressure? Assuming gravity fill, can you slide a hose in far enough to get below the floor of TV? Even if you need a short piece of smaller hose to fit in the fill, just screw together so it doesn't leak. Hose from bottom of transfer tank, into fill. Might need a little air pressure in top of tank (fresh water? Bell, just suck the hose!) to start flow, but siphon can move water pretty easy

phil-t

Ogdensburg, NY

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Posted: 09/08/21 06:40am Link  |  Quote  |  Print  |  Notify Moderator

> Is there a quiet water pump?

When it's turned off. :-)


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BobsYourUncle

Calgary Alberta Canada

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Posted: 09/08/21 06:56am Link  |  Quote  |  Print  |  Notify Moderator

I had one once that sounded like a Harley at full throttle...

As mentioned above, the water lines can be a contributing factor. One of mine was loose and it banged against a wall with every surge of the pump. Some oversize plastic pipe clamps and some medium density sponge foam around the water line helped a lot. Also tucking that same foam between the water lines and floor / walls too.

In addition to that, my pump was mounted directly to the floor. I removed the screws, got a square of firm, but not rigid foam / rubber and used it as an insulator to the floor.

It helped a lot but the sound will always be there. You can't get away from the sound of the pump itself.

We leave our pump turned off at night, and don't flush until the morning. No big deal there, a little extra liquid in the bowl until morning.


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BarabooBob

Baraboo, WI

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Posted: 09/08/21 07:03am Link  |  Quote  |  Print  |  Notify Moderator

Does your RV have a pressure tank in the system? IN my RV the pump comes on whenever I turn on any water. With a pressure tank installed, you could turn the pump off at night and be able to flush the toilet a couple of times and use the tank pressure to supply water.


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ksbowman

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Posted: 09/08/21 07:53am Link  |  Quote  |  Print  |  Notify Moderator

I had a noisy pump in a 5th wheel I had. The pump mounted to the floor so I added a rubber pad under it and I added an accumulator tank. It really quieted things down and at night the stool could be flushed several times without the pump coming on.

valhalla360

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Posted: 09/08/21 07:54am Link  |  Quote  |  Print  |  Notify Moderator

I prefer a little noise...

If it's the middle of the night and I hear the pump cycling, I know there is a problem that needs to be sorted out. If it was dead silent, I might not find it until it's flooded the trailer...or worse some hidden place where it soaks things every time we use it until the floor rots out.


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jefferson,ga

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Posted: 09/08/21 08:02am Link  |  Quote  |  Print  |  Notify Moderator

For now fillup a gallon jug or 2 for night flushes and turn off pump. As others have said, i want hear mine, for leaks. Most hardware stores have quality pumps, much better than rv dealers or online.


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opnspaces

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Posted: 09/08/21 09:15am Link  |  Quote  |  Print  |  Notify Moderator

I'm not sure if there is a quiet pump. But as above there are a couple of ways to make it quieter.

Make sure the pump is mounted on a rubber or soft foam pad.

Cut the PEX tubing near the pump and add some hose clamps and flexible line.

Use some foam and follow the water lines out of the pump. Wedge a piece of foam between the hard lines and the walls and floor.

Add an accumulator tank into the system. An accumulator will allow a flush or two without turning on the pump making for a silent flush. The downside is once the accumulator pressure bleeds off the pump has to run longer to re-pressurize the system.


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