PLUMBILL
I talked to a salesmen years ago about the problem with this faucets hot side only leaking and not the cold. He admitted to me it was a desigin flaw and now they use a stainless steel cap on the bottom of the cartridge so the plastic does not warp on the hot side causing this leak.
He sure had a large simle on his face when he said; “they sure have sold alot of these hot cartridges”$$$.
