Recently my kitchen faucet delivers less water pressure for hot water (cold water is fine) and water takes much longer to get warm. All other faucets (bathroom sinks, shower, ...) are working as usual.
By doing some research I learned that this problem may be caused by a clogged aerator, and that I might need to replace the faucet's cartridge (I already tried cleaning the O-ring and screen washer kit and did not fix the problem).
It seems that my faucet's model is a Moen Kleo and might have a cartridge #1255 or #4000 (Based on looks after removing handle it could be the cartridge #4000). I took the handle out with an allen key, but I can't take out the cartridge. It is too hard to yank out and I'm afraid to break something. I can't take the dome piece out either (in case I needed to do this first and then unscrew the cartridge piece). It is too hard. Since the installation guide refers to the faucet as "faucet body" and does not cover cartridge replacement I don't know if I should be able to unscrew or yank out the dome (and I don't want to force and break anything).
I have been able to find tutorials on youtube, but not for my specific cartridge (or faucet model), so I don't know what to do about those pieces. Home depot's Q&A doesn't cover this specific question, as neither does Moen's.
Still, the cartridge replacement can be found in their websites (among others) which makes me think I should not need a professional to replace it. I am not the first owner of this place, so I don't have the original installation tools, in case any is needed to take one of the pieces out.
What is the process to replace a Moen Cartridge 4000 in a Moen Kleo Faucet?