Grohe concetto faucet, 34270, leaking at lever handle when moving lever up and down
Pulled lever handle off to look for leak or seal I could replace but could not make determination.
Plumbing - Grohe - 3427 Concetto Single Hole Bathroom Faucet - Chrome
Answers & Comments
It's a complete cartridge that you need to replace. Contact Grohe and they should send you out a new cart. under their limited lifetime warranty