Review on Kohler K 4467 0 Wellworth 1 28 White by Aaron Thawngzauk

I am very happy with this device EXCEPT for one problem: last year it worked and will all filled for an hour or two. I'm a single person, I live alone and it's downstairs in the bathroom. Not exactly heavily used. I think it should have lasted much longer than 4 years before it had to be replaced. My plumber wants $150 just for diagnostics and repairs.