Like every aspect of a pool, water quality diminishes over time. Pool water is subject to harsh chemicals and biological remains, such as dead skin, oils, and hair. Pool water chemistry can not be effectively treated after a 5-7 year period. Another reason may be due to warm climate and Hawaii heat, water is constantly being evaporated, every time someone goes in and out of the pool, it loses a little bit of water. This means that the water is consistently replaced by the automatic water leveler (AWL) “Auto Fill”. The more new water that is added to the pool, and consistent refilling of pools may increase hard water readings and when your water temperature rises, the balancing of the chemicals is greatly effected. Certain chemicals may not dissolve properly in the pool water. Minerals in water such as calcium and copper will fall out and cause staining to to surface of your pool and tiles. Once this happens you will start to notice visible chalky calcium deposits adhere to and harden on these surfaces. Chemicals and professional cleaning can remove the staining and build up. A pool drain can give you a fresh start on water quality. Call us today, to get your free Estimate, we offer partial drains and full drains.