Pool And Spa Lighting – How To Change Or Replace Underwater Lights and Bulbs For Swimming Pools And Hot Tub Spas – Lighting is essential if the pool is to be used at night. External lighting of your pool, spa, or water feature is possible with a variety of high- and low-voltage systems. For installation and maintenance of external systems, it is recommended you consult your local electrician. For lighting the water from within, however, there are also a variety of options…

Swimming Pool Water Chemistry And Water Testing. The subject of water testing may transport you back to the days when you were in school and final exams were approaching, all too quickly for your comfort. Rest assured, pool- and spa-water tests are much less painful than you may imagine. What’s more, regularly testing your pool and spa water is a critical part of any maintenance routine. Each element defined in the Keeping Your Water Balanced section has a specific test to give you an up-to-the-minute evaluation of your pool and spa water. Once again, your pool/spa supply shop is the best place to buy these test kits. To give you a brief outline of their use, we review all the various tests you, or your service professional, must perform on your pool and spa…