replying to Robert11, Johny c one lately wrote:
I realize this is old! But this thread lead me to the conclusion.
It is air in the side sprayer hose causing the diverter to quickly surge to
the hand sprayer while the air inside the hose is compressed to equal the.
water pressure. I had this same problem, one of the responses nearly had it.
Release the air from the sprayer and problem solved.

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