Water will flow through it, but it will squeal. In this case there must be some debris jamming the element inside, preventing it from opening fully.

Trapprimer installation

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I was hoping that you were right but I just looked and "In" is on the street side and "out" on the house side so I think it is in the right way. Art

TrapPrimer types

I have used a WATTS 25AUB Pressure regulator ser. 8322W with a blue name tag for 15 years on my home incomming water maind with no problems. 1 " Copper lines, incoming pressure 130psi. We had some pressure creap inside the house and I was out of town so I had a lic. Plumber replaced it 1 week ago. It made a squeal so load they could hear it across the street when tolet or washer was used. He installed a new 2nd 25AUB Z3 (ser. 07211) with green tag that worked 2-3 days and now squeals. Less but still very load. Is there a recall or difference between 25AUB and the Z3? Suggestions? Rebuild the old one? Art

are you positive it's the prv and not the nearby main cutoff -- cutoffs will definately squell if they have a washer and some do.

How dotrap primerswork

Trapprimer for floor drain

Turn the adjustment screw counterclockwise one full turn and the noise should stop. This will increase your house pressure slightly. The object is to move it away from its factory setting (where it's been stuck for how ever long it's been on the shelf).

Yes tank type heater and no expansion tank. But we never have and the first one never squeaked. I would think if it was just expansion tank then when we release back pressure by opening cold the sound would go away. It makes noise any time we flow either hot or cold. Thanks for looking at this. Art

Art, contact a Calif. Watts Rep at either- ---------------- DELCO SALES, INC. Address 1930 Raymer Avenue Fullerton, CA 92833 USA Territory CA (South), NV Communications 714.888.2444 714.888.2448 sales@delcosales.com www.delcosales.com ----or------ PREFERRED SALES, INC Address 31177 Wiegman Road Hayward, CA 94544 USA Territory CA (North), NV (Excluding Las Vegas) Communications 510.487.9755 510.476.1595 p094@watts.com www.preferredsalesinc.com

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