How to test an RP

[@tcudahey9550]

I enjoyed the video since I am studying for my Backflow certification. Thank you for the video sir.

[@SpiLTeam2FireProtection]

(Prep) Notify customer Inspect Area Flush Testcocks - 0:39 Install fittings Close all needle valves (Step 1) Observe CV#1 - 1:07 Record closed tight or leaking (Step 2) Record relief opening 2:38 Close low control (Step 3) Observe CV#2 - 3:21 Record closed tight or leaking (Step 4) Reset Low Bleed - 5:30 Record CV#1 PSI (Step 5) Record outlet shutoff Close test cock 2 - 6:31 Record closed tight or leaking (Step 6) Optional Close vent control and remove bypass hose Move hoses over Record CV#2 PSI - 7:27 (Final) Closed Testcocks: remove all equipment Open all needle valves on test kit Open outlet shutoff valve slowly

[@JimmyBackflow]

Nice job but closing test cock number 2 does not necessary indicate that the downstream shut-off valve is holding drip tight. It only indicates that the backflow prevention device is in a no-flow or static state at time of the test. No downstream demand. If the test kit needle dropped to zero this would be an indication that there was a demand downstream and the downstream shut-off valve was leaking. To test the tightness of the downstream shut -off valve, a demand must be created downstream of the backflow prevention assembly.

[@kenmermelstein]

Thanks! I wish I had found this before my TREEO final. They threw in a leaking check 1 on the test and it threw me.

[@willshealey6852]

What's the issue if after you bleed high and low then close shut off valve 2 and pressure drops to 0 and relieve valve doesn't open?

[@thunderanderson]

Thanks for sharing !

[@grumpyg9350]

What?👎