Please help identify this equipment/meter

Can anyone tell me what this is? I need to reduce the water pressure at my house (currently at 100 psi) and I am wondering if there is some built-in reducer in all of this. If not, can I place a pressure reducer valve somewhere in this set up or do I have to crawl under the house?

Uhmm, photo is your natural gas service.

That is a gas meter, and it is already at about FOUR OUNCES of pressure so you would NOT want to reduce it any further. You MIGHT want to contact a plumber to work on your water line, before you do something to create a major problem.

WHere you can add a pressure reduction valve will depend on where the water comes into the house or possibly there may be room out where the water meter is. As noted, that meter is your GAS supply...don't mess with it!

You probably have a main water shutoff valve somewhere...first thing is to find that since the PRV would need to go AFTER the main shutoff. You will also want to install an expansion tank or you may be introducing additional problems. Generally, one requires the other.

With all due respect, you'd better just hire a licensed plumber. You obviously have zero knowledge of plumbing, so DIY is out of the question. Stick to doing what you have some knowledge of and can do with just a little advice. We can give you everything you need to know on line.

quote;
Stick to doing what you have some knowledge of and can do with just a little advice.
We can give you everything you need to know on line.

The two sentences contradict each other.

Arrrg!!! HJ is spot on. I didn't say what I meant at all.