Need Grohmix expert, temp prob
I have a Grohmix valve that has really never worked well. After years of not being able to control the temp much and messing around with it, I decided it must be a Paraffin Cartridge issue. These are quite expensive, so I bought a whole new valve instead of paying more for all the parts I probably needed to swap out. Anyway I pulled it all out..except the part welded in. I put it all back with the new parts and I can not get cold water to go through the valve. I dismantled it all and can get cold to the stop valves, and to the pipe that holds the Paraffin Cartridge, but when I put the cartridge in, no cold water will pass.
Hot water comes through, but no cold. Of course this happens on a Friday night...although I suspect local plumbers wouldn't have a clue about this kind of thing anyway.
Common questions people seem to ask...yes the hot is on the correct side, water pressure is good on hot and cold.
Thanks for any ideas...I'm stumped and kind of tired of putting this together/pulling apart, although I seem to be getting pretty good at it.
an idea about the Grohe valve
Ok, not many ideas here...I'm wondering if there are multiple ports from the stop valve to where the paraffin cartridge goes. If this is the case then maybe one is open, but the one where it goes to the mixing chamber of the cartridge could them be blocked. These openings between the stop area and cartridge is not very obvious...sort of thin openings from what I can see using a flashlight and feeling around.
Sorry if this is too esoteric a question...something just isn't lining up right if no cold water can pass.
Fixed the problem...I'm pretty sure
Turns out I was talking to my daughter about the problem and she said, "Well the sink doesn't have cold water either." And I got to thinking about when that 1920's vintage pedestal sink had a leaky cold faucet...you know the old hot and cold separate....and it seemed easier to just shut it off than get a rubber gasket that would actually stop the leak. And then I remembered how the cold water feed to the tub has a tee that went under the tub over to the sink.
So long story shorter I opened the sink cold tap, ran all the orange water out while running the shower and wallah...it works. I don't understand all the physics, but the one seems to have affected the tub valve. I get cold water, and the hot is a nice hot for a shower. whew
Thanks for your patience and help in this...strange one