I live in Seattle. I don't know anything about plumbing but after a problem on the ground floor, over two days all pipes in my apartment and one below were changed. I didn't want them changed but they said they hadn't been changed for many years and this had to be done. Then we both got new showers, which work differently from old ones. Mine used to have separate hot water and cold water knobs but apparently the management is installing new showers in all their 10+ buildings, and these ones are like one knob for both hot and cold water and also a wider shower head which spreads the water out way more than my last one.
I feel like the water pressure is lower and told the manager and he said he had not heard from anybody but would send the plumbers. A guy came and took a look for 20 seconds and said it's normal.
I'm perplexed because whenever I shower I definitely feel a change. It's not just the shower head, which obviously does not direct the water the same way. When I soak in the tub, letting it fill, it takes longer too.
Could a new shower lower pressure? Like having one knob vs two? Because when I used to turn both knobs to the max, that seemed to produce more pressure than pulling out this one knob to the max.
Could new pipes, due to diameter or build quality affect pressure?
Thank you so much.