Maximizing Pool and Spa Performance with Muriatic Acid: Tips for Safe Cleaning and Maintenance

If you own a pool or spa, you likely already know how important it is to keep the pH balance within a set range. Without proper pH balance, the chlorine in your pool may not do its job properly. One way to keep the water at the correct level is through the use of muriatic acid, also known as hydrochloric acid. Knowing how and when to properly use muriatic acid is essential for keeping your pool and spa in great condition.

The most important step in using muriatic acid is to first determine whether or not you actually need it. The easiest way to be certain is by having your pool water tested. You can visit a professional, get your own pool testing kit, or take a sample to a store that sells pool supplies. Doing this will provide you with the data necessary to determine how much, if any, muriatic acid your pool needs.

Once you have determined that your pool or spa needs muriatic acid, it is time to begin the process. Begin by filling a bucket with clean water that is not taken from the pool or spa. Make sure to remember exactly how much water is in the bucket for later. Next, add a pint of muriatic acid to the bucket. When measuring, be sure not to exceed 1 pint, and make sure that the amount of acid is no more than 1/10 of the amount of water already in the bucket. When handling, make sure to wear protective clothing, eye protection, and gloves as the acid can burn skin and ruin clothes.

Once mixed in the bucket, it is time to add the solution to the pool or spa. Begin by broadcasting it around the perimeter of the pool. Make sure to use small amounts and spread it evenly. If you are adding acid to a spa, make sure to still broadcast the mixture throughout the tub, although it is not essential due to the size and potential to agitate the water with jets. After, finish adding the remainder to the deep end. No one should use the pool or spa for at least 30 minutes after application.

Finally, after four hours has passed, take another sample of the water and have it tested, or use a test strip. Once you have the results, you may want to add more muriatic acid at this time if needed. Don’t add any more until you’ve seen the results from the test, as doing so could cause further complications. Regularly testing your pool and spa will give you the most accurate idea on how much muriatic acid your pool requires for the proper balance.