Faucet bought new from Menards in Lincoln Nebraska two weeks ago. Professionally installed. Faucet working correctly for less than seven day. Now button on the sprayer doesn't work. Button doesn't switch between spray and stream. Installer contacted by me. He did come over and check it out. He informed me that the assembly of the hand sprayer is defective.My contact info is 40two.7six8.Three789 mobile number. Thanks for your support and help. S.Kamler Ohiowa Nebraska.