Woes with the new and "improved" flapper-style flush valve
Yes, maddog, the problems I am currently having are with the new style (flapper style) replacement flush valve on my two Champion toilets. Like I stated, and you agreed, less than four months in SOFT water (Portland, OR area where we have "the softest water in the country") is not acceptable for the seal life of ANY flush valve/flapper seal.
Good luck with your new Champion (Fluidmaster) replacement flush valve. I, too, was thrilled over the flush valve improvement...until a couple of weeks ago when the seals apparently failed simultaneously in both of my AS Champion toilets.