533-50 kitchen faucet leaks above base mount at pivot body when water is on and the faucet is pivoting to fill other sink.It dribbles out on counter top.Seems not to leak if faucet stays stationary.The joint for the handle body seems to have some up and down play in it.Maybe all it needs is to tighten it if possible. Thanks

There are O rings that seal the various body parts of this faucet. I would try turning off the supply lines, removing the handle, and unscrewing the faucet and the housings. Look for O rings that seal each part. Could be a broken, or maybe some foreign material has gotten in the O ring grooves. Best bet would be to replace any O rings and tighten it all back securely. It should not have any Up and Down play, should only swivel side to side. I'm thinking O rings. While there, you can replace the seat seals and springs, so that you preclude any leaks from the faucet itself. Lowes, Home Depot, carry the repair kits for these faucets at a reasonable price. And they usually include the allen wrench and wrench to remove the handle and the body parts. And they are relatively inexpensive. Around 4 to 6 dollars. Its an easy fix.