I recently replaced both of the seat cartridges in our lavatory faucet. They work fine now and don't leak anymore. But during the past few weeks they have become more hard to turn on and off. Is there a reason for this that anyone knows of? It almost feels as if something is tightened too much, but I put it back together just the way it was, without overtightening anything..
Thanks,
Dave

Is there a plastic 'nut' that has two notches that takes a special wrench to tighten/loosen? Loosen that nut; a LITTLE bit.

XenoSapien