Shallow Well
New Member
Hello all,
I drove in a sandpoint last summer and still have airbubbles in the water. The well never looses prime even when not pumping for weeks. I replaced all above ground pipeing and have not found any leaks on the suction side. The well has a very solid Hydrolic connection I determined because the handpump has absolutly 0 kickback on the handle with great water flow. I believe the point is sitting in a very very fine sandy aquifer.
When running wide open it pumps airbubbles steady. But when I hook up the pressure tank and run it at around 36 psi it does not pump any noticable airbubbles but still has good water flow.
With a 1/2 hp pump running full flow with 0 psi it pumps exactally 5 Gpm for hours with a suction of 23.5" hg on the vacuum gauge (which translates to 26.55 feet of suction lift).
The point is 25.6' deep with a static water level of 16'4". The top of the screen is a around 4.5' below static water level (can not drive point any deeper due to hard layer).
My First question is: Could I be overpumping the well and drawing small ammounts of air through the well screen due to drawdown of the water level above the screen.
Second question: Gould's website suggested installing a ball valve on the suction side to prevent over pumping a low yield well but not to throttle to more than 22'' HG (or 25 feet suction lift). Does anyone have any experience or suggestions on this being that im already at 23.5"Hg.
I drove in a sandpoint last summer and still have airbubbles in the water. The well never looses prime even when not pumping for weeks. I replaced all above ground pipeing and have not found any leaks on the suction side. The well has a very solid Hydrolic connection I determined because the handpump has absolutly 0 kickback on the handle with great water flow. I believe the point is sitting in a very very fine sandy aquifer.
When running wide open it pumps airbubbles steady. But when I hook up the pressure tank and run it at around 36 psi it does not pump any noticable airbubbles but still has good water flow.
With a 1/2 hp pump running full flow with 0 psi it pumps exactally 5 Gpm for hours with a suction of 23.5" hg on the vacuum gauge (which translates to 26.55 feet of suction lift).
The point is 25.6' deep with a static water level of 16'4". The top of the screen is a around 4.5' below static water level (can not drive point any deeper due to hard layer).
My First question is: Could I be overpumping the well and drawing small ammounts of air through the well screen due to drawdown of the water level above the screen.
Second question: Gould's website suggested installing a ball valve on the suction side to prevent over pumping a low yield well but not to throttle to more than 22'' HG (or 25 feet suction lift). Does anyone have any experience or suggestions on this being that im already at 23.5"Hg.
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