flow vs pressure

[Jim Baird]

At 4 fixture master bath, and at 3 fixture main floor bath, as well as at kitchen sink, flow sucks. Turn on all in a group and all go pretty slack.

Yet out at hose bibb on front cnr, pressure is 75 PSI and flow squirts thru handle assembly to hit me in face.

Original galvanized supply built 1955. I called for possible replacement of galvinized.

Make sense?

[Bill Kibbel]

Pressure can remain quite high, but volume low due to the reduced interior dimension of galvanized pipes. Just like my occluded arteries causing poor circulation but blood pressure remains high.

[John Kogel]

I would call for definite replacement of the galvanized. They would have a hard time getting insurance with galvy pipes up here.

Something I thought of is that there could be a plugged up pressure regulator, with the outside tap ahead of the regulator.

[John Dirks Jr]

Pressure doesn't need to be that high to satisfy people. Volume is the important thing for occupants. Enough volume and everyone is happy.

I'd be suspecting the galvanized supply line too.

[Marc]

Defer to plumber. Possibilities are too numerous.

Marc

[kurt]

Too numerous? I don't think so.

Late 40's into late 50's/early 60's galvanized pipe was crap. It's clogged up old crappy pipe.

[MPdesign]

Check to make sure it isn't the aerators.

[John Dirks Jr]

Check to make sure it isn't the aerators.

Good point. Especially if on well water.

[plummen]

Could be many things causing the problem .Shut off/stop valves could be plugged full of trash,Faucets could be plugged up.

Ive seen galvanized supply lines in old houses that were so clogged the lead on a pencil wouldn't fit in there,Ive also see 70 plus year old galvanized lines that look brand new inside.[]