If your pool is open and operational, shock it using your normal procedure. Then, keep the pump running for several more hours to distribute the chlorine.
When your pool is closed, pull back the pool cover to add a pre-dissolved pool shock. Use your pool brush to create circulating currents to circulate the pool. Without a pool pump or a brush, chlorine shock can damage the steps or floor of a pool. This is because concentrated chlorine can build up in one area of the pool.
You do not need as much chlorine in winter as usual. This is because the chlorine's efficacy decreases as the water temperature rises. The more power and strength the HOCL has, the less it will increase your pool shock dosage. It’s also important to remember that just because you use less pool shock doesn’t mean that you should decrease it.
If the water's pH reading exceeds 7.5, then add a chlorine pool shock. It's important to keep in mind that chlorine pool shock will reduce the effectiveness of chlorine if the pH level gets too high. If the pH gets too low, it will cause the water to become acidic, which can damage the pool's surface. We usually use shock to keep the pH at a reasonable level.
Since the sun does not shine as much during winter, it's not necessary to use a pool stabilizer or a conditioner to prevent pool damage. Ideally, aim to have at least 20 ppm of cyanuric acid in the water. This level should be measured at a local pool store or by performing an online test.
If you have any other questions about pool and spa products please do let us know - we are here to help!