lfmgtc59
New Member
I inherited a shallow well lawn sprinkler system that was disfunctional. After a lot of effort it is now up and running... almost.
Setup:
9 well points on 1-1/4" pipe (5 of the wellpoints are 1-1/4", the remaining 4 are 1")
The wellpoints are 13' deep with approx 5 - 6 feet of water.
There are check valves at the top of each well point
Well points are approximatly 10' apart
The pump is a Sta-Rite DS2HE-103 (all seals have been replaced)
Main inlet line is 1-1/4"
Main outlet, and the lines to the valves are 1"
On the outlet side I have a fitting (a) to allow me to add water / pressure to the system and just downline from that a valve to be able to isolate / shutoff the main line to the valves. There is also a pressure cut off switch just on the outlet side of the pump.
There are 9 valves.
If I pressurize the system by connecting a hose from the city water to the outlet side (a) the entire system with valves off will hold 40psi pretty much indefinitly even after the city water is cut off, so it appears there are no bad check valves and no leaks out to the valves.
There are two issues:
1. It takes about 20minutes for the pump to begin to make enough pressure to actually run the sprinklers - Is this normal?
2. Once the cycle has run and the valves shut the outlet pressure reaches 40psi the pump shuts off, but immediatly the pressure drops past the cut in pressure of around 20psi and the pump begins to go through a very short cycle... this continues until I kill the power to the pump, then pressure immediatly drops to 0.
Can anyone help me out on this, I have some ideas, but don't want to cut the system up trying them when I'm not sure whether or not they will work.
Any assistance is much appreciated.
Thank You!!
Lee
lfmgtc59@aol.com
Setup:
9 well points on 1-1/4" pipe (5 of the wellpoints are 1-1/4", the remaining 4 are 1")
The wellpoints are 13' deep with approx 5 - 6 feet of water.
There are check valves at the top of each well point
Well points are approximatly 10' apart
The pump is a Sta-Rite DS2HE-103 (all seals have been replaced)
Main inlet line is 1-1/4"
Main outlet, and the lines to the valves are 1"
On the outlet side I have a fitting (a) to allow me to add water / pressure to the system and just downline from that a valve to be able to isolate / shutoff the main line to the valves. There is also a pressure cut off switch just on the outlet side of the pump.
There are 9 valves.
If I pressurize the system by connecting a hose from the city water to the outlet side (a) the entire system with valves off will hold 40psi pretty much indefinitly even after the city water is cut off, so it appears there are no bad check valves and no leaks out to the valves.
There are two issues:
1. It takes about 20minutes for the pump to begin to make enough pressure to actually run the sprinklers - Is this normal?
2. Once the cycle has run and the valves shut the outlet pressure reaches 40psi the pump shuts off, but immediatly the pressure drops past the cut in pressure of around 20psi and the pump begins to go through a very short cycle... this continues until I kill the power to the pump, then pressure immediatly drops to 0.
Can anyone help me out on this, I have some ideas, but don't want to cut the system up trying them when I'm not sure whether or not they will work.
Any assistance is much appreciated.
Thank You!!
Lee
lfmgtc59@aol.com
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