We have had endless trouble with our solar hot water elements – apparently the water in our area is very hard and that causes the element to corrode. Also of concern has been the build-up we get around the taps in the bath and the basin and the corroding of the toilet bowl. The only way I could get them clean was by scraping with a knife. Before The Hard Water Shop conditioner was installed, I gave them all a good scrub and in the two months since, I have not had to scrub again as there has been no build up. We have also noticed that the shower has been much cleaner with less build up on the tiles.