We are in the process of redoing our bathrooms. Amazingly, my biggest problem is what toilet to purchase. Our current toilets are American Standard purchased back in the mid '80's when our house was built. We are on well water and have both an acid neutralizer and water softener. However, I still get a mineral buildup at the water line in the toilet bowl which can only be removed with a pumice stone. Are there some tried and true water systems that can be purchased to eliminate this problem? I know the Toto toilets are highly recommended on this site, but I hesitate to purchase one because I have read where the finish on them is no guarantee with well water problems. No doubt I need to have our water retested to get a good handle on what is happening. Also, I am wondering if one of the water treatment systems isn't contributing to the problem.