noisy water pump

Thanks Blue hill

Here's a link to a video that I put on YouTube showing what I did to solve the problem. 10 minutes work, cost 5 bucks (canadian)

Clicky

no wonder it is noisy!

fj12ryder wrote:
Look on the bright side: maybe the pump is simply bad. :)

hmmm could be true!

anon125 wrote:
I would never have thought it was this complicated!

In most cases it wouldn't be but good grief, look at all that plumbing attached to the pump's intake! :E Your first step should be to physically isolate the pump itself from whatever it's currently mounted to, even if that means relocating it. Secondly, I'd extend the output hose significantly as I described earlier, then if necessary insert some soft wall tubing between the pump and whatever that mess is that's currently attached to the pump's intake in your pic. Geez, with an installation like this no wonder it's noisy! :S

FWIW, yesterday and this morning I sanitized and pressurized my own trailer's water system in preparation for our first camping trip of the season and using these methods which I detailed in my first post I can barely hear the pump run, just as shown in my video. :B

Look on the bright side: maybe the pump is simply bad. :)

I would never have thought it was this complicated!
thanks

From the picture shown, I see three things that can help:

1: Shock mounts like Shadow Catcher mentions. That way, vibrations are not transferred from the pump to the rest of the rig which is acting like the sounding board in a guitar, amplifying the noise. Dealing with vibrations on the cables and hoses also helps.

2: A small accumulator tank, like the ShurFlo. It doesn't store much water... but it is pressurized to 30 PSI, and helps keep the brief "burrup" noises at bay.

3: Worst case, get a variable speed pump.

I used bubble mounts to help isolate the pump from the sounding board it was mounted Bubble mounts

I believe your problem is associated with the water inlet lines to the pump. Notice how you will need to pull (suck) a lot of air (bubbles) downhill against a water column on the inlet lines to your pump.

First, redress the inlet water lines to minimize the down hill flow as much as possible. Then when priming the pump on first start open as many water taps as possible to increase the water flow through the pump which will, if you get it right, rid the inlet lines of air pockets.

IMO, it is the bubbles of air going through your pump that makes it sound like a machine gun. To prove or disprove my theory of the noise source see if you can manually fill the pump inlet water lines with water, then connect to FWT and test same for noise. JMO.