I have one of those auxilary spray hose thingies on my sink. It began
to leak. When the leak started, so did the water hammer phenomena.
Hot, cold, lo/hi flow, whenever I turned on the main faucet, I'd get
water hammering. Finally replaced the leaky spray nozzle so the
sprayer no longer leaked. The water hammering ceased, also. Can
anyone explain what was happening? TIA

nb

On Oct 3, 8:15*pm, notbob wrote:
I have one of those auxilary spray hose thingies on my sink. *It began
to leak. *When the leak started, so did the water hammer phenomena.
Hot, cold, lo/hi flow, whenever I turned on the main faucet, I'd get
water hammering. *Finally replaced the leaky spray nozzle so the
sprayer no longer leaked. *The water hammering ceased, also. *Can
anyone explain what was happening? *TIA

nb

It hammered when turned on, not off? There is some sort of a valve in
the spray assembly that keeps it off unless you pull the trigger.
Sounds like that valve was marginal and when you replaced the sprayer
you also got a new valve.

On Oct 3, 9:15*pm, notbob wrote:
I have one of those auxilary spray hose thingies on my sink. *It began
to leak. *When the leak started, so did the water hammer phenomena.
Hot, cold, lo/hi flow, whenever I turned on the main faucet, I'd get
water hammering. *Finally replaced the leaky spray nozzle so the
sprayer no longer leaked. *The water hammering ceased, also. *Can
anyone explain what was happening? *TIA

nb

Whenever you turn on the sprayer it also operates a diverter valve
that redirects water from the spigot to the sprayer. This works by
sensing a pressure change when you sqeeze the trigger on the sprayer.
Leaky sprayers will cause the diverter valve to chatter.

Jimmie

On Oct 4, 12:19*am, JIMMIE wrote:
On Oct 3, 9:15*pm, notbob wrote:

I have one of those auxilary spray hose thingies on my sink. *It began
to leak. *When the leak started, so did the water hammer phenomena.
Hot, cold, lo/hi flow, whenever I turned on the main faucet, I'd get
water hammering. *Finally replaced the leaky spray nozzle so the
sprayer no longer leaked. *The water hammering ceased, also. *Can
anyone explain what was happening? *TIA

nb

Whenever you turn on the sprayer it also operates a *diverter valve
that redirects water from the spigot to the sprayer. This works by
sensing a pressure change when you sqeeze the trigger on the sprayer.
Leaky sprayers will cause the diverter valve to chatter.

Jimmie

+1...

Jimmie has the correct answer...

~~ Evan