Cycle Stop Valves
Pump System Questions and Answers => Pumps, Wells, Tanks, Controls => Topic started by: Thronk on February 11, 2026, 08:48:44 PM
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I purchased the psidekick based off my well report (not installed yet), seems like it meets the parameters allowed as long as I understood my report.
Now I didn’t think about back pressure and the piping/fittings I have and whether the rating is exceeded. Can I determine back pressure with the information in my report? I started to get concerned since the brass barbed fitting I’m going to use in the black underground cresline pipe is rated for 100 PSI. Will try to see if I can make out the cresline rating on the pipe.
Appreciate any help in advance.
Edit: incoming supply pipe is 100 PSI rated as well, can’t find specs on the pump, not under the well cap. Installed in 1990, location is Maryland.
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That is actually a pretty good well record. It shows a 7 GPM, 3/4HP with a static of 175'. 100 PSI pipe is very low rated pipe but, I calculate the back pressure at only 97 PSI.
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Thanks for helping out! Looks like I am under but with little margin, would this concern you with your experience?
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The burst pressure of pipe and fittings is 2 to 5 times the rated pressure. So, no I am not worried about it. Actually the back pressure from the CSV is easier on the pipe and fittings than without a CSV when the pump is cycling on/off and causing water hammer.
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Okay thanks. I decided to throw on a pressure gauge while installing because I hated not knowing for certain and it does in fact sit at 97 PSI! Quite surprised to be honest, I figured there would be losses somewhere to the CSV but here’s to more validation for you!
Thanks again, so far it works great.
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Thanks for the confirmation. Figuring the back pressure from a CSV is fairly easy. Subtract the static water level from the pumps shut off head and divide by 2.31.