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How may turns should it typically take to see a change in pressure when adjusting a residential pressure regulator?

I turned mine 1.5 turns in either direction (while repeatedly opening and closing a spigot), but have not seen the slightest change in pressure. I'm wondering if it requires many full turns to see a change.

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I just installed a PRV last weekend. It takes several turns to change anything. Are you using a pressure gauge to set it with? You also must bleed the line each time you want to take a reading. Meaning opening a valve or spigot between changes.

Also mine had a direction of flow on it. An arrow pointing in the correct direction. I'm not sure if that would be an issue, but I made sure the one I installed was in the correct direction.
 
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