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R BMW · 01-31-2024, 09:39 AM

Make sure the pump is a VSD type. It will only run at a speed needed to keep the water pressure at demand.
The other style pump will run at full speed every time it turns on. Also you can get by with a smaller pressure tank with a VSD.

01-31-2024, 09:39 AM	#5
R BMW Second Lieutenant 949 Rep 279 Posts Drives: 2014 328Xi GT, 2020 X3 MC Join Date: Apr 2019 Location: Minnesota iTrader: (1) Garage List 2020 BMW X3 M Comp [0.00] 2014 328Xi GT [10.00]	Make sure the pump is a VSD type. It will only run at a speed needed to keep the water pressure at demand. The other style pump will run at full speed every time it turns on. Also you can get by with a smaller pressure tank with a VSD.
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