Nofears67
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Hello all,
I am building a home and am hoping to utilize an old well that is on our property. This well will need to supply the domestic, irrigation and fire sprinkler demands for our home. The fire sprinkler demands are 45 gpm for 20minutes.
Conditions of our well.
Drilled in 1973.
160' deep
12" steel casing, 1/4" wall.
Top of well elevation = 4270
Standing water level elevation = 4240 feet.
Can sustain a constant flow of 100 gpm for 4 hours before breaking suction.
Well located approx 450 feet from home.
Conditions of our home.
Pad elevation = 4322
Single story, 3600 sq ft
3 bathrooms, 2 with multi show head configs.
Fire sprinklers throughout.
Very large slope areas to landscape/irrigate.
4370 is elevation of highest point to irrigate.
Conditions for our pump/motor
3 phase power already present at well.
Needs to be able to supply 30 psi at elev 4370.
Needs to supply 50-60 psi at elev 4322.
We have been given an estimate from a local well company for $15,000 that includes a 10 hp submersible motor set at 147' depth with a VFD drive, a 6" -55GS100 water end pump, transducers, piping electrical, an 85 gal pressure tank, etc. They were suggesting a VFD to avoid the use of a CSV so the pump wasn't deadheading. (I'm still torn between VFD vs CSV setups)
This seems awefully high to me and we really need help configuring a pump/motor/tank system that will cost less and work best for our home's domestic, irrigation and fire demands.
Any suggestions? Please help us setup a great system.
Thank you
I am building a home and am hoping to utilize an old well that is on our property. This well will need to supply the domestic, irrigation and fire sprinkler demands for our home. The fire sprinkler demands are 45 gpm for 20minutes.
Conditions of our well.
Drilled in 1973.
160' deep
12" steel casing, 1/4" wall.
Top of well elevation = 4270
Standing water level elevation = 4240 feet.
Can sustain a constant flow of 100 gpm for 4 hours before breaking suction.
Well located approx 450 feet from home.
Conditions of our home.
Pad elevation = 4322
Single story, 3600 sq ft
3 bathrooms, 2 with multi show head configs.
Fire sprinklers throughout.
Very large slope areas to landscape/irrigate.
4370 is elevation of highest point to irrigate.
Conditions for our pump/motor
3 phase power already present at well.
Needs to be able to supply 30 psi at elev 4370.
Needs to supply 50-60 psi at elev 4322.
We have been given an estimate from a local well company for $15,000 that includes a 10 hp submersible motor set at 147' depth with a VFD drive, a 6" -55GS100 water end pump, transducers, piping electrical, an 85 gal pressure tank, etc. They were suggesting a VFD to avoid the use of a CSV so the pump wasn't deadheading. (I'm still torn between VFD vs CSV setups)
This seems awefully high to me and we really need help configuring a pump/motor/tank system that will cost less and work best for our home's domestic, irrigation and fire demands.
Any suggestions? Please help us setup a great system.
Thank you
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