Opening Your Pool
Most people put off the process of opening their pools until it is time for it to be used. Therefore, when the pool is first uncovered, the pool water is usually an ugly shade of green. So what is the natural tendency? Throw a ton of chemicals in the water to clean it up as soon as possible. This is exactly the wrong way to go about it.
Try to start a few weeks earlier in the season. This allows the correct amount of chemicals to clear water over time. Using less chemicals will yield a better result and save money. By using more chemicals you may be able to clear and balance your water more quickly, however, you would be exposing the vinyl to risk. It is better to use fewer chemicals over a longer time frame and extend the life of your liner.
Remember: Less is best when adding chemicals to your vinyl-lined pool.