What is the most quiet return pumps?

[Tom R]

I use a Dolphin Amp Master 3000. It is not a high pressure pump however it is rated to move about 3600 GPH. It is the quietest pump around and it only uses approx 90W of power per hour.

I have been using this pump for 7 years without a problem. It uses approx half the power of the Reeflo pumps.

I currently have about 525G in my system all going through the one pump and sump.

Tom R