Doheny's Chlorine Neutralizer

Doheny's Chlorine Neutralizer is designed to act rapidly. Once applied, you should see a reduction in chlorine levels within a few hours, though the exact time depends on your pool's volume and the initial concentration level.

Yes, this formula is safe and effective for both swimming pools and spas. Because spas have much smaller water volumes, be careful to dose according to the specific gallonage to avoid over-correcting.

The best method is to broadcast the granules evenly across the surface of the pool water while the pump is running. This ensures the sodium thiosulfate dissolves and circulates thoroughly for even neutralization.

While its primary job is neutralizing chlorine, adding any chemical can slightly shift water balance. It is a good practice to test your pH and total alkalinity levels a few hours after treatment to ensure everything remains in the ideal range.

Start with a conservative amount based on the manufacturer's dosage chart relative to your pool size. It is always easier to add more if needed than to try and raise chlorine levels back up after neutralizing too much.