First off, I've read some 1 star reviews by people that clearly have no idea what this product is, how it works, or how to use it. This is 100% Cyanuric Acid (CYA). While it says Stabilizer and Conditioner, this is one ingredient.
CYA is a chemical that acts as a chlorine stabilizer. It forms a protective shield around the chlorine molecules in your pool, preventing them from breaking down when exposed to ultraviolet (UV) rays from the sun. The recommended amount of CYA in your pool can vary depending on whether you have a saltwater pool with a Salt Water Chlorine Generator (SWG) or a traditional chlorine pool. In a traditional chlorine pool without an SWG, the recommended range for CYA is 40-50, whereas a salt water pool would be higher at a recommended 70-80.
Adding CYA to your pool is important for maintaining an effective chlorine level. Without CYA, the chlorine in your pool can quickly dissipate due to sunlight exposure, requiring you to add more chlorine frequently. By using CYA, you can extend the lifespan of your chlorine, saving you both time and money.
How to add it:
Do NOT just dump it into the pool. CYA takes time to dissolve fully in the water. By just dumping it into the water, it may not dissolve properly and could settle on the pool floor, or worse, clog the filter.
Instead you can either use an old sock, or (see photo) my favorite method is some sack cloth. Measure how how much you need, following the instructions carefully, then letting it soak for 12 hours. If you see my photo, I do it this way so I can place the skimmer lid back, and keep the cloth from falling into the skimmer (don't let this happen). Also, make sure the pump stays running for 24 hours during and after adding CYA.
You can speed the process up by massaging the sack, just don't do this too vigorously otherwise you'll end up with CYA granules falling out.
Notes:
CYA does not break down or dissipate. It remains in the water for an extended period of time, providing its stabilizing effects on chlorine. Unless you have had your pool water replaced, or you have a new pool there is no reason to keep adding CYA.
CYA levels can gradually build up in the pool over time, especially if excessive amounts are added or if the water is not diluted or partially drained and refilled periodically. This buildup can lead to high CYA levels, also known as "chlorine lock," which can negatively impact the effectiveness of chlorine. Monitoring and testing CYA levels regularly is crucial to maintaining the appropriate range for optimal pool chemistry and chlorine stability.