Tom Verduzco, owner of Backyard Spa and Leisure, uses the PuripoolTM multi filter system process that uses UV light and reverse osmosis to clean & purify pool water. This process allows homeowners the ability to filter their pool water rather than having to drain and refill the pool when the water becomes too dense and difficult to keep balanced. There are a number of benefits using the Puripool proccess other than conserving water. This mobile filtration system is able to reduce the levels of Calcium Hardness, Cyanuric Acid, Total Dissolved Solids, Bacteria, Viruses, and more. What to Expect The first step is to take readings of your pool water. An appointment will be scheduled to bring the mobile water filtration unit to your residence to set up. After set up, the process will begin and run until the criteria for the water readings are met. This process will take anywhere from 9 to 24+ hours. The water will be tested again to determine the new readings.