Often ,simply removing the cartridge ---cleaning the valve body with a light sanding --then a new cartridge and you are back in business---
With your sediment and lime /iron condition---deliming the valve body might be a good idea---lime-away or a commercial steam table cleaner would be a good choice.
Delta mixers have a small screen inserted into one of the back holes in the valve body---cleaning or replacing that is also needed.
With your sediment and lime /iron condition---deliming the valve body might be a good idea---lime-away or a commercial steam table cleaner would be a good choice.
Delta mixers have a small screen inserted into one of the back holes in the valve body---cleaning or replacing that is also needed.