My toilet bowl was leaking. And earlier call to American standard resulted in theyre sending me for valves to fix the leaky Excelerator washers For the toilets that I had bought. This contact most recently was because the washers did not fix the leak and I wanted to know if I was doing something wrong. Lori the consumer rep was very congenial Sent me a link to review the process of installing the washers. The link was very simple and was exactly what I was doing. I am about to contact them again to see what our next move will be