I have the exact same problem. I just installed the unit yesterday and it does not leak until you use the sprayer. The sprayer leaks at the quick connect fitting at the base. As soon as I saw that new connection type I cringed. I may have to contact Pfister to see if they have any suggestions. I will be beyond ticked if I have to remove/reinstall a whole unit again.
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I have the exact same problem. I just installed the unit yesterday and it does not leak until you use the sprayer. The sprayer leaks at the quick connect fitting at the base. As soon as I saw that new connection type I cringed. I may have to contact Pfister to see if they have any suggestions. I will be beyond ticked if I have to remove/reinstall a whole unit again.