Ballvalve
General Engineering Contractor
Need a figure [checked, critiqued] for the cost per gallon of water pumped from a deep well.
1 HP pump, about 250' of head, submersible. Production about 500 gallons per hour. I used 3 KW per hour which I think is generous, at .13 cents each. So .39 cents per 500 gallons. 39 cents divided by 500 = .00078 cents per gallon. 10,000 gallons x .00078 = $7.80.
I see very complex cost calculators online, and one comes close to this, but I need some other opinions. It does seem incredibly low in cost for moving that weight of water. A 1 HP pump would theoretically use 1000 watts or less, but I used 3000 watts for efficiency losses and high service factor on the motors, perhaps 1.4 or a bit more.
Your help checking my remaining brain grey matter much appreciated.
1 HP pump, about 250' of head, submersible. Production about 500 gallons per hour. I used 3 KW per hour which I think is generous, at .13 cents each. So .39 cents per 500 gallons. 39 cents divided by 500 = .00078 cents per gallon. 10,000 gallons x .00078 = $7.80.
I see very complex cost calculators online, and one comes close to this, but I need some other opinions. It does seem incredibly low in cost for moving that weight of water. A 1 HP pump would theoretically use 1000 watts or less, but I used 3000 watts for efficiency losses and high service factor on the motors, perhaps 1.4 or a bit more.
Your help checking my remaining brain grey matter much appreciated.