does anyone know about plumbing stuff like shower faucets here?

if its very old (like 20 yrs etc) then best to change the whole valve.

apnayloags wrote: ↑ if its very old (like 20 yrs etc) then best to change the whole valve.

Why ? If he can find the cartridge and exchange that, there's no need to add more aggravation to a leaky faucet by having to re-tile the bathroom and good luck finding the tiles to replace if you didn't keep any extras . A 5 minute DIY job could turn into a thousand dollar, week long job that he needs to find someone to do as well.

..... plus if OP can find a newer cartridge that fits that particular valve it could be a performance upgrade in terms of hot/cold pressure balancing at least.

Looks like the cartridge has the usual clip in a groove at the top that has to be pried off first.

To get a 20+ year old cartridge out easily you may need a tool that rotates the cartridge a bit to break the rust/hardened rubber bond (as in the youtube link, I see).
That might be a problem if the tool is brand specific.
You could pull it out forcefully at the risk of leaving bits of torn rubber in the valve that could become an issue.

My guess is that it is one of those brands like Danze as opposed to the major players.
So unlikely a plumbing supply house would be familiar with it or replacement cartridges that fit.
I would take a look in a place like Habitat for Humanity Restore to identify the brand.

Remember the rules:

1) Turn off water first before touching or adjusting anything
2) refer to Step 1.

Moen 1225 is available at any hardware store and if you bring your old one in, they'll give you a replacement for free. My local place will give me a new one if I promise to drop the old one off.

OMG thank you so much guys! this is right and now i can order that cartridge, wasn't really interested in fixing the entire unit with a hot water pressure balance and having to re tile it. But the neat thing is that i actually pressure balance it with a thermostatic valve right from the exit of the hot water heater so it's basically impossible to scald yourself.

last time i took pics to a home depot no one knew what it was. probably the plumber expert wasn't in that day which is why i turn to the community here.

thanks again everyone! helped me a ton here!

Azreal911 wrote: ↑ OMG thank you so much guys! this is right and now i can order that cartridge, wasn't really interested in fixing the entire unit with a hot water pressure balance and having to re tile it. But the neat thing is that i actually pressure balance it with a thermostatic valve right from the exit of the hot water heater so it's basically impossible to scald yourself.

last time i took pics to a home depot no one knew what it was. probably the plumber expert wasn't in that day which is why i turn to the community here.

thanks again everyone! helped me a ton here!

Yeah I was here posting on RFD...lol.

is it normal to put a soldering bead on like Delta turn ring (between the ring and the metal holder) holding the cartridge in place? I saw that my builder did that with mine.