Hi Glen, We are sorry that you are experiencing a problem with your model 35902LF-RB faucet. Make sure that the bonnet nut that holds the stem assembly in place under the handle is tight. If the bonnet nut is tight you will want to replace the RP47422 stem assembly to stop the leak.
http://www.deltafaucet.com/repairparts/details/rp47422.html?showPhotoGallery=false
Here is a link to the parts breakdown for your model to help with the repair.
http://www.deltafaucet.com/customersupport/documentation/35902lf-rb.html?document=pd&fromDetailArea=bath&documentIndex=0#flashWrapper
Thanks,
Dave
Answered by: DeltaFaucet2
Date published: 2015-01-05