Pressure drop cause?

[Wescarnes]

I moved the supply and drain in a downstairs bathroom and now the pressure in the shower above is reduced. What happened? (It’s city water). Thanks!

 

[Breplum]

u might have dirt/rust that migrated. Investigation is necessary...so, can't help much.

 

[Sponsor]

 

[josephrazaa]

May be pipe is blocked.

 

[Fitter30]

Pull the aerator and shower head inspect both.

 

[John Gayewski]

Your have a valve that didn't open all of the way back up or you kicked something loose in your piping.