My kitchen faucet started leaking from the handle after 6 years of use. Reading other reviews, I guess I should consider myself lucky. I don't know what part I need to fix it, or whether I should just replace it with a Moen. I've had other Kohler products, with mixed results - some leaked and had to be replaced; others were fine. But I've never had issues with Moen. I tried calling Kohler, but they "can't take my call at this time." I'm supposed to write an actual posted letter to Kohler and include the original sales receipt, which I don't have. Apparently the warranty is useless to me.