RPZ - How it works

[@TheSideshowFirefly]

Awesome video, thanks for putting this together!

[@ah3ll0]

Thanks for this detailed video. Good job! 👏🏼

[@KaneBannanas]

Ingenious design

[@JimmyBackflow]

Thanks a lot

[@asyrafjusoh9645]

Hello. Which one is the supply pressure? I don't quite understand that part.

[@JimmyBackflow]

The supply pressure is where the water enters the backflow preventer. It is the inlet pressure or the pressure at TC#1. Supply pressure is typically higher than the outlet pressure. Backpressure is the exception.

[@Mikey2Times]

I know this video is old but I'm going to take a shot. Valves are banging in my rpz whenever my makeup water pump starts and stops like there's air trapped inside. How can I fix this?

[@JimmyBackflow]

Mikey - water hammer is the issues. can be corrected with the installation of a soft seated check valve downstream of the backflow prevention assembly.

[@davem3833]

Or get a plumber in

[@Mikey2Times]

@@JimmyBackflow thanks man! I had a plumber come in and try to change the whole RPZ , you definitely confirmed what I thought would fix it. 👍

[@conqwiztadore2213]

​@@Mikey2Times There's always a rotten apple in the bunch lol

[@conqwiztadore2213]

Where does the Z come from lol. Video isn't bad. Thank you

[@JimmyBackflow]

The "Z" stands for the area between the first and second check valve "the Zone" - Some manufacturers refer to this type of backflow preventer as a "Reduced Pressure Zone Assembly" while other manufacturers refer to them as a "Reduced Pressure Principle Assembly"

[@humblethinker8493]

@@JimmyBackflow oh wow, this comment was really helpful! Thanks!

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