Pool was installed in 2013, plastered and opened 4/2014, this is my third season as a pool owner, and have had nothing but problems since opening the pool last May. We opened the pool to find the entire pool and spa scaled, even though we had the maintenance company test the pool water monthly and adjust pH. The pool maintenance company added acid to the water to remove the scale, that was done in May 2015. Since 2014 I've battled high pH, high Cyanuric Acid in 2015 too. In August I noticed some residue on the walls of the pool, when rubbed it came off. I called the maintenance company and had the hardness tested, it was 550, all season up to August the hardness according to the pool store was within normal limits. September 25 we had 3/4 of the water removed from the pool and a water hauler refill the pool, the hardness was 190. 9/28 we closed the pool. I elected a winter watch program to test the water due to the problem with high pH and now the hardness level. The water was tested and 11/4 the hardness was 400, hardness and the pH continued to rise all winter. Acid was added to the pool to lower the pH and a pump circulated the water when acid was added during the winter. We opened the pool 4/25/16 to the spa scaled and chipped, the hardness was 500. I'm at my whits end, no one seems to know why the hardness keeps climbing. We looked at every product I've used and nothing contains calcium. Now the pool company that installed the pool is telling me to continue to drain 2 feet and refill the pool over the next month or two to lower the hardness, that just seems ridiculous as we did that last September and in November the level was up to the max. It will cost a fortune to continue to drain, add water and re-balance chemicals! In the past year I've spent almost $10,000 in pool chemicals and with the maintenance company to correct issues. Does anyone have a suggestion as to why this is happening and a possible solution? Thank you!