Update by user Jan 04, 2021 David J. Roche Mon, Dec 14, 2020, 10:36 AMI haven't heard from Delta. Nothing has changed. This has been going on for months now. They need to resolve this problem soon. Their lack of action is not only annoying, but also a waste of water.Thank you for your help.Regards,David J. RocheDroche520@***.com Original review posted by user Nov 14, 2020 Regarding: RP50587 Single Handle Pull Out Kitchen Faucet Delta did send repair valve parts, to their credit. But it is leaking again, five months later. I'd like them to send new parts that have the bugs worked out. The "ceramic" valve technology they tout just doesn't work! I'm open to Delta's thoughts on a remedy. They can send parts that work, or offer an upgrade to a different model, or finally, just refund the cost of the unit. I can provide a receipt. I'd like to make this work out, with Delta's cooperation. I've used the product line many times over the years, with no callbacks! Thanks for your help. Dave R.