Situation and a need for quick assistance:
I'm currenty installing a geo system with a well-water sourced open loop. I have a choice of a recharge (dump) well or a really big french drain/drywell (plenty of land either way). Cost to drill a well is estimated at $5000 for 200'+-. Cost for a 10' x 40' pit, 10' deep with a 4' deep bed of rock, fabric and 6' of soil replaced on top is $1200.
The area's soil type is pure fine silt (almost no clay), very dry, with a percolation rate of 2.9 min. per inch at 10' down (identical soils from surface to about 150' down). The maximum amount of water to dispose of is about 12,000 gallons per 24 hours when system is operating at max. Groundwater is around 180'.
The pit can be placed somewhat downhill narrowing the pump head recovery difference between the two disposal methods (recharge well has about 27' at this altitude and the drywell has about 13' (only a 14' difference).
Will the drain work or is the drilled well the best option?
Thanks to the forum,
Thump
I'm currenty installing a geo system with a well-water sourced open loop. I have a choice of a recharge (dump) well or a really big french drain/drywell (plenty of land either way). Cost to drill a well is estimated at $5000 for 200'+-. Cost for a 10' x 40' pit, 10' deep with a 4' deep bed of rock, fabric and 6' of soil replaced on top is $1200.
The area's soil type is pure fine silt (almost no clay), very dry, with a percolation rate of 2.9 min. per inch at 10' down (identical soils from surface to about 150' down). The maximum amount of water to dispose of is about 12,000 gallons per 24 hours when system is operating at max. Groundwater is around 180'.
The pit can be placed somewhat downhill narrowing the pump head recovery difference between the two disposal methods (recharge well has about 27' at this altitude and the drywell has about 13' (only a 14' difference).
Will the drain work or is the drilled well the best option?
Thanks to the forum,
Thump
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