Water pump...if everyone can keep their cool!

SoundGuy wrote:

Vintage465 wrote:
I will keep the existing 4048 SureFlo, add a couple feet of 1/2 flexible high pressure hose on the downstream side of the pump to quiet the little rascal.

"A couple of feet" will have little impact, the soft hose needs to be at least 15' or longer - coil it and wrap it in a soft towel. Adding more hose to the intake side will have little impact.

I used coiled 40" soft shower head hoses and foam pipe insulation connected to our pump's inlet and outlet to drastically quiet it down. The hose on the inlet side dampens mechanical pump vibration transmission to the hard pipes, while the hose on the outlet side dampens both the mechanical and water pulsing vibrations. Now our pump can only be heard as a soft hum in most of the coach if everything else is silent. Certainly the hose on the outlet side was the most effective, but the one on the inlet side added enough additional reduction to make it well worthwhile as well.