salesman was very pushy!!! was at our home for over 2 hours!! we informed him that we were not making a purchase of this incredibly expensive water purifying system that evening, that we wanted to think abou it and talk about it, and he would not take NO for an answer! glad to see he believes in his product, but honestly, he wasted a lot of everyone's time, because there was no way were were going to do it that night, and he kept pushing. did his "test" on our water, which took about 30 min, and spent the next hour and half trying to sell us! would not recommend!!!