The course is already paying off for me. My wife just noticed our expensive Hansgrohe kitchen sink faucet was leaking into the cabinet below. I traced the leak to where the extension hose attached to the faucet head, unscrewed it and found corroded brass and an o-ring seal. I carefully removed the o-ring, cleaned everything with vinegar, brass picks and paper towels, and reassembled after a very light application of Christolube. No more leak.
I even had an o-ring of the correct size in the kit Robert sent me, although it was a 90 duro and the original felt like a 75 so I elected to reuse it.
I even had an o-ring of the correct size in the kit Robert sent me, although it was a 90 duro and the original felt like a 75 so I elected to reuse it.