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The area of 3/4" ID PVC is almost twice that of 1/2" copper ID. I can visually see that. If you like, I could calculate the difference. Like I said, I appreciate people trying help, but misinformation doesn't help me or anybody else.

I appreciate any help, BUT the diameter of 3/4" is NOT about the same as 1/2copper pipe.

No kinks...it's all sweated copper. There are pretty long runs to and from the softener. Could too much copper run in the crawlspace be part of the problem?

From the meter at the street to where it joins 3/4" copper under the house, it's all 3/4" pvc. Checked all the faucet screens, cleaned out the softener and put in new media. I'll check and see if there is some sort of screen in the softener control head. I haven't checked the screen in the pcv...

I know they are not the same, but here's the history. I've never had great water pressure and recently it's been getting worse, especially when more than one water tap is open, so I took the following actions. Checked water pressure on outside faucet 40-45psi. Called the water dept. to see if...