Right tool to remove cartridge of single handle bath sink faucet?
I am having trouble removing the cartridge of a single handle bath sink faucet. The cartridge is held in by a dome shaped cap under the handle, it is very hard to get a decent grip on it with channel locks or anything else. There is a ridged ring at the base of the dome, but it is angled slightly outward, also the faucet itself gets in the way.
I remembered I replaced one of these awhile back, I had some trouble, but nothing memorable. This time I'm just stuck.
Does anyone know a good tool to deal with this?
If I can't get the cap off, I'll have to replace the shutoff valves (contractor valves) so I can replace the faucet. Ugh.