How To Build A Simple Check Valve

in diy •  7 years ago  (edited)

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Parts Required:

  • One Stainless Steel (or equivalent) Spring.
  • One Marble.
  • One Female 3/4" Irrigation Fitting.
  • One Male 3/4" Irrigation Fitting.
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That's cool. Should it be able to stop the amount of pressure from a normal home?

I think those fittings are rated at 100 PSI which is (approximately) that of a 'normal' house. The marble locks inside pretty snugly but it could potentially cause micro-fractures in the plastic over time. I have only tested it on a low pressure gravity system and a small hydraulic ram pump that I built...so I am not sure about the viability of it on a high pressure system because the hydraulic ram pump was (I am guessing here) maybe producing 25-30 PSI so I am hesitant to say yes.