Replacing Pressure Reducing Valve - Questions *Fixed*

[Reach4]

How about a 3/4" x 1/4" PVC Sch. 40 Spigot x Female Bushing? I suspect the plastic is thick enough for that female thread to be strong enough. I am thinking to screw the gauges into the bushings before gluing them into the tees. That way the gauges will face the right way.

 

[Jadnashua]

Female pvc threaded socket fittings are a leak waiting to happen.

 

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[danisrael8]

Happy Thanksgiving everyone! I hope y'all get to enjoy the day off, eat some good food, and spend time with friends and family.

Trying to overcome the brass male to female pvc conundrum.... would this work better? Or is more connection points more prone to leaking?

Thanks,
Dan

 

[Reach4]

Trying to overcome the brass male to female pvc conundrum.... would this work better?

Not for the gauges in my opinion. I would not bother with the valves to the gauges either.

There is another tool you could consider. You could use schedule 80 or schedule 120 pvc threaded pipe or nipples. They have the same OD as schedule 40. Never thread schedule 40. You could screw the threaded end into a brass fitting, and glue the unthreaded end.

I don't know if the prohibition of new PVC applies to the crawl space or only to the heated space of the house.

 

[danisrael8]

Hi All,

I just wanted to update everyone on my repairs. Changing out the main line PRV fixed my issues of pressure drop and changing the expansion tank fixed the over pressure issue when the water heater runs.

I checked the strainer on the water heater PRV and it seemed like it had some gunk in it but nothing terrible. I also found out while changing the water heater PRV and expansion tank that my main shut off was bad so I had to replace that as well. All in all it was a very good learning experience. I am glad I used unions on the PRV or else I would have had to redo the work (threaded pvc was leaking and needed one more turn on each side). So far so good with no leaks! I'll be going out and getting supports tomorrow. Here are some pictures for those interested. The incoming pressure is 130 psi and is reducing down to 55 psi (65 when the water heater is running.) When multiple faucets are opened it drops to 45 psi.

Thanks everyone for their help!!
Dan