wiseacre
Solar Enthusiast
Musing what to do in case of a grid outage and how to keep the water running. Remembering the ice storm of '98 when the grid was down for 3 weeks.
Replacing the existing submersible 1/2hp/230v pump with a Grundfos 120v pump seems too simple to be real compared with buying a generator and even more so trying to do it with a solar system that would require a transformer to handle 240v and the surge. Overall the price of the pump is very reasonable considering the cost of the other options.
The soft start built into the pump seems to solve the problems I would have to deal with using my existing pump.
I saw in the description: https://backwoodssolar.com/product/grundfos-1-2-hp-10gpm-pump-kit-2/
Reduce maximum lift by 92 feet if used to pressurize a bladder tank to 40 PSI. Reduce maximum lift by 92 feet if used to pressurize a bladder tank to 40 PSI.
The lift is not a problem. I have a good supply at 50 ft. What I wonder is the 40 PSI, can it go higher? I have a 40/60 pressure switch, do I need to replace it? I can live with lower pressure if need be. Would a 30/50 PSI switch be suitable?
Is installing a receptacle (120v) to plug in the pressure switch wiring into so it's easy to disconnect and then plug into the inverter's power supply a reasonable idea?
I'm sure there are other things to consider but don't have the knowledge to know what. Any additional considerations and pointers are welcome.
Replacing the existing submersible 1/2hp/230v pump with a Grundfos 120v pump seems too simple to be real compared with buying a generator and even more so trying to do it with a solar system that would require a transformer to handle 240v and the surge. Overall the price of the pump is very reasonable considering the cost of the other options.
The soft start built into the pump seems to solve the problems I would have to deal with using my existing pump.
I saw in the description: https://backwoodssolar.com/product/grundfos-1-2-hp-10gpm-pump-kit-2/
Reduce maximum lift by 92 feet if used to pressurize a bladder tank to 40 PSI. Reduce maximum lift by 92 feet if used to pressurize a bladder tank to 40 PSI.
The lift is not a problem. I have a good supply at 50 ft. What I wonder is the 40 PSI, can it go higher? I have a 40/60 pressure switch, do I need to replace it? I can live with lower pressure if need be. Would a 30/50 PSI switch be suitable?
Is installing a receptacle (120v) to plug in the pressure switch wiring into so it's easy to disconnect and then plug into the inverter's power supply a reasonable idea?
I'm sure there are other things to consider but don't have the knowledge to know what. Any additional considerations and pointers are welcome.