New well; recovery rate, according to driller, is 5gpm. 115' deep, 50' static water level.
Going with a Gould 1/2hp, 230V, 2 wire submersible pump.
Pump will hang 100' deep; 60' from well to pressure tank at house.
1st pump: Gould 10GS05422C, 10gpm, recommended range 3-16gpm.
(Flowchart shows maximum pumping depth at 3gpm to be 210')
At 100' depth, flowchart shows 12gpm.
However, the performance chart for 100' depth at 30 to 50psi
shows 10.5gpm at 30psi, 7.5gpm at 40psi, and a blank at 50psi.
2nd pump: Gould 7GS05422C, 7gpm, recommended range 1.5 to 10gpm.
(Flowchart shows maximum pumping depth at 1.5gpm to be 290')
At 100' depth, flowchart shows 11gpm (which is slightly out of the recommended range).
Performance chart for 100' depth at 30 to 50psi
shows 9.7gpm at 30psi, 8.7gpm at 40psi, and 7.6gpm at 50psi.
Not sure why the 1st pump is slightly out of the performance chart,
but interpolating from the other figures, it would seem that at 50psi, the gpm would be
between 4 and 5gpm, still within the recommended range.
I'm thinking that the 1st pump would be sufficient. (The 1st pump is also $54 cheaper)
The question is, which pump should I get and why ?
Thanks,
Arky
Going with a Gould 1/2hp, 230V, 2 wire submersible pump.
Pump will hang 100' deep; 60' from well to pressure tank at house.
1st pump: Gould 10GS05422C, 10gpm, recommended range 3-16gpm.
(Flowchart shows maximum pumping depth at 3gpm to be 210')
At 100' depth, flowchart shows 12gpm.
However, the performance chart for 100' depth at 30 to 50psi
shows 10.5gpm at 30psi, 7.5gpm at 40psi, and a blank at 50psi.
2nd pump: Gould 7GS05422C, 7gpm, recommended range 1.5 to 10gpm.
(Flowchart shows maximum pumping depth at 1.5gpm to be 290')
At 100' depth, flowchart shows 11gpm (which is slightly out of the recommended range).
Performance chart for 100' depth at 30 to 50psi
shows 9.7gpm at 30psi, 8.7gpm at 40psi, and 7.6gpm at 50psi.
Not sure why the 1st pump is slightly out of the performance chart,
but interpolating from the other figures, it would seem that at 50psi, the gpm would be
between 4 and 5gpm, still within the recommended range.
I'm thinking that the 1st pump would be sufficient. (The 1st pump is also $54 cheaper)
The question is, which pump should I get and why ?
Thanks,
Arky