I'm reactivating an old underground irrigation system at my lake house. There are no sprinklers , just hose bibbs for standard watering, which I'm fine with.
Following a neighbors advice I'm using a 1HP submersible pump. The pump has an 1.25" discharge, which I believe is pretty standard, but the old system I'm tying into is 2". From the pump elevation to the highest hose bibb elevation is about 40'. My question is, am I going to have a problem with the excess water capacity that the 2" pipe has over the 1.25". Once that 2" pipe is pressurized am I going to have some type of gravity backflow pressure that going to hurt the affect the pump's capacity?
One more quick question, is there any reason I shouldn't just put pump on a manual switch and turn on when I want to use, as opposed to installing a pressure tank, which would a very problematic installation?
Thanks
Following a neighbors advice I'm using a 1HP submersible pump. The pump has an 1.25" discharge, which I believe is pretty standard, but the old system I'm tying into is 2". From the pump elevation to the highest hose bibb elevation is about 40'. My question is, am I going to have a problem with the excess water capacity that the 2" pipe has over the 1.25". Once that 2" pipe is pressurized am I going to have some type of gravity backflow pressure that going to hurt the affect the pump's capacity?
One more quick question, is there any reason I shouldn't just put pump on a manual switch and turn on when I want to use, as opposed to installing a pressure tank, which would a very problematic installation?
Thanks