Thank you for your question. The aerator assembly can be removed with an aerator wrench, RP50815 to clean. The whole sprayer assembly can be removed from the Delta 4140-TP-DST faucet. This can be soaked in a solution of 50% white vinegar and 50% water mix for an hour to even overnight to clean any debris that maybe inside of the sprayer.
Date published: 2019-01-10