Make the Water Pump Run Less Frequently

More than likely, you’re used to the water pump cycling on as soon as you turn on a faucet.  Even if you just need enough to swallow a pill, or that tablespoon for your cookie mix, you’re worried about waking up the poor soul whose pillow is right above the water pump.

It doesn’t have to be that way.  With the addition of a small accumulator tank, you can run as much as a couple of gallons of water without the pump needing to run.  When it does run, it’ll cycle on and run long enough to rebuild that same volume.  It’ll also go a step further than last time in reducing the amount of noise the pump makes, as it will absorb some of the pulsating inherent with a diaphragm pump.

Here’s what you’ll need:

  • Accumulator tank.  The 1 or 2-gallon size is probably what you’ll be looking at in most RVs.
  • 1/2″ x 1/2″ x 3/8″ Add-A-Tee fitting
  • 1/2″ FIP x 3/8″ compression flexible hose
  • 3/4″ FIP to 1/2″ MIP adapter and pipe thread sealant

Like last time, once you see the parts list, it’s pretty straightforward.

  1. Turn off the water supply, drain the lines as before.
  2. Install the Add-A-Tee on the water pump outlet, between the hose added last time and the pump.
  3. Connect the new flexible line to the 3/8″ outlet on the tee.
  4. Attach the adapter to the accumulator using pipe thread sealant
  5. Connect the other end of the new flexible line to the accumulator.
  6. Check for leaks, and mount accumulator in place.

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