Regular maintenance of your inground swimming pool is necessary. One of the most important parts of maintenance is shocking your pool. Most swimming pool manufacturers recommend using granular chlorine to shock your pool, but liquid chlorine also is available. It is important to consult your swimming pool vendor before using liquid chlorine, as most vendors tell you not to use it.
Liquid chlorine often is used in place of chlorine tablets. Often pool owners forget to shock their pool regularly and reach for the liquid chlorine in a pinch to get the chlorine levels up to where they need to be. This is not recommended as a regular way to keep the pool fully operational! Chlorine tablets and regular cleaning are the best ways to keep your pool clean and scum-free. But in a pinch, liquid chlorine can be used. Liquid chlorine is available at hardware and home improvement stores. Often it comes in a jug and recommends using one-part chlorine to three-parts water. The liquid shock is usually sold in a gallon jug, and the entire contents can be emptied into the swimming pool. Generally, for inground pools, a gallon of liquid chlorine will do the trick. If your pool is smaller, or just a lap pool, consult the directions on the liquid shock bottle or talk to your pool vendor. But for smaller pools, a half gallon is generally recommended.
First, make sure no children or pets are in the pool area. Open the liquid shock bottle and bend over so you can pour it into the water at a close distance to prevent splashing the chlorine. Start in the deep end of the pool, near the water jets so that they can help move the chlorine around the pool. As you are pouring, walk slowly around the pool to help evenly distribute the product.
Do not allow anyone to swim in the pool for 24 hours. After 24 hours, it is a good idea to clean the pool to remove excess chlorine residue from your pool liner. It is also recommended to use regular chlorine tablets and pool shock products recommended by your pool vendor to prevent problems with excess chlorine in your pool from using the liquid chlorine.