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Hello Aaron my name is ***** ***** I look forward to helping you. I would replace the entire valve and put on a single handle moen posi temp valve. What is in the back side of the wall the valve is on??
No, I'm talking about replacing the entire valve body.
Yes, however repairing a little bit of drywall in order to have a modern valve in there that'll last you 40 years would be the best long term repair. Otherwise you just have to figure out how you can remove the diverter stem and hope you can find a replacement. In the picture you sent had you already removed a nut?
No. Would you prefer I opt out?
Hello thank you for using just answer i am Duane, i will be helping you today. when i am finished if you need futher assistance, just respond back and i will respond to you
yes some of the old valves are very hard to i dentify what make and model they are.. if you take and turn off water cold &hot then you can take out diverter vakve with out turn off home suppl .. but this model i think maybe an old gerber /or crane if you take wall socket /or cow bell socket and the smaller iner nut is what you need to loosen .. then take to good supply house to locate you maybe able to look at good hard ware store?? some ace hardware stores are well stocked with old style shower valve parts ?but either way just have to remove and locate new diverter .. then replace but other than that it is next to impossible to identify with just a picture ..to many brands &models that style 3 handle was very popular long time ago..
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