When troubleshooting a leaking faucet choose your delta faucet type identify your leak location in the diagram and review the associated solutions and recommended replacement parts.
Delta faucet leaking under handle.
Lift the stopper out.
Do this for both hot and cold sides.
Unscrew the stem unit nut with channel locks.
Remove the nut that holds the horizontal rod to the body of the pop up stopper.
Replace ball assembly 1 in diagram repair part rp70 as shown for lever handles or rp212 for knob handles replace cam packing 2 in diagram repair kit rp61.
Place handle on stem and rotate counterclockwiseapproximately 1 4 turn after the stop has been contacted.
Test to see if water is leaking around the flange by plugging your drain with a rubber stopper.
Look down into the bottom of the valve and you ll see the seats and springs.
And take a picture of the stem unit before you remove it with the channel locks.
Unscrew the delta faucet handle by hand and use an allen wrench to loosen the set screw that holds the handle body in place.
Then remove the faucet handle body and set it aside.
Do not pry the valve cartridge out of the bodywith a screwdriver.
Toremove seats and springs remove valve cartridge.
Leaks from under the handle.
Reattach the nut that holds the horizontal rod to the pop up body.
If the faucet is leaking from under the handle replacing the cam and packing should solve the problem.
Lift valvecartridge out of body.
Insert an allen wrench into the rubber seat tilting it slightly to catch the spring.