I live on the first floor, and solar is installed on the roof of the seventh floor, but the water ca

I really don't know how high your floor is in meters! In fact, according to current regulations, office solar panels cannot be installed higher than the sixth floor, as they are prone to lightning! But since you have it installed, let me give you some suggestions! A 350W booster pump with a lift of 9 meters is theoretically infeasible! Another question is: When you install solar, do you use PPR pipes or aluminum-plastic pipes? It is recommended to use a 550W booster pump, which must be absolutely authentic! There are currently 750W booster pumps on the market, and the actual operating efficiency is 550W. The current market price of a 550W booster pump is 220-230! Plus two large and small head converters, it's 10 yuan! In other words, no more than 240 yuan is a reasonable price.able! Be sure to note that this is a copper core and the power should be real!