Hi everyone. I learn a lot by reading your posts and appreciate your knowledge and willingness to share it. I am working on a residential irrigation system that has a large cistern, a 1hp jet pump, 7 zones with aerial risers and popups. The problem I have is that I want to convert the aerial system to drip emitters and am not sure if the pump will overdrive them and cause component failure or I should downsize the pump and motor. I am in south florida so there is no danger of freezing.
There is no valve on the discharge side of the pump to regulate output. The cistern is approx 1000 gallons and is fed by city water and has rainwater gutter collectors. Since the pump has a 2" suction line it drains the cistern faster than the 3/4" city water can refill it. Sophisticated float switching (4 wires) for which I have no schematic was previously used to regulate city water filling but disabled by prior repairmen. The irrigation controller actuates a solenoid valve that allows city water to fill the cistern but there is no shutoff it will continue overfilling the cistern without connecting the 4 wires previsouly mentioned to some contactor device.
What pieces oif information should I begin accumulating in order to make this system work properly? I have an volt/ohmeter and can check the 4 wires I believe come from the cistern to determine if there are open or closed dry contacts connected to them. The pump motor needs servicing anyway as the bearings are starting to whine.
Thanks for your help!
There is no valve on the discharge side of the pump to regulate output. The cistern is approx 1000 gallons and is fed by city water and has rainwater gutter collectors. Since the pump has a 2" suction line it drains the cistern faster than the 3/4" city water can refill it. Sophisticated float switching (4 wires) for which I have no schematic was previously used to regulate city water filling but disabled by prior repairmen. The irrigation controller actuates a solenoid valve that allows city water to fill the cistern but there is no shutoff it will continue overfilling the cistern without connecting the 4 wires previsouly mentioned to some contactor device.
What pieces oif information should I begin accumulating in order to make this system work properly? I have an volt/ohmeter and can check the 4 wires I believe come from the cistern to determine if there are open or closed dry contacts connected to them. The pump motor needs servicing anyway as the bearings are starting to whine.
Thanks for your help!