pulsating h20

[BADAIR]

1st for me

watch vid https://www.dropbox.com/s/5oqd508k6u1ksvh/H2O%20pulsation.MPG?dl=0

any ideas of the cause & cure

when sillcock was not obstructed by the multiple gauges i carry, flow was constant, no pulsation, flow or pressure loss when either sillcock or multiple fixtures were operated

wasn't going to try & move their lg turbowash and try at the laundry bib

2008 closed loop pex manifold system with prv & expansion tank present

static pressure is generally within the 40~80psi as required & most properties i've done in this area are ok

[Jim Katen]

I believe that bib has a vacuum breaker built in. If so, it's misbehaving. If they notice a problem with it in actual use, they could always just swap out the bib for a new one.

[inspector57]

I've seen it before but I have no definitive answer as to the cause.

I also suspect it is a misbehaving vacuum breaker at the hose bib. It reacts too quickly for it to be anything very far upstream.

[Nolan Kienitz]

Not an issue ... it's a "feature" or "enhancement" [^]

[BADAIR]

ty Mr. Katen

i was so aroused i overlooked the obvious

[John Kogel]

ty Mr. Katen

i was so aroused i overlooked the obvious

Yes Jim has that effect on people sometimes. []