Testing the pH level of your pool water
No one likes swimming in acid water. It burns the skin and irritates the eyes. This is just one of several
reasons why we recommend testing your pool water at least once a week to ensure it has the right pH
What is pH and what’s the right level for swimming pools?
pH is a measure of acidity and alkalinity in water. In a swimming pool, the water's pH level should be
maintained between 7.2 and 7.6. In this range, which is a little alkaline, the chlorine sanitizer works the
best and the pool equipment will last the longest.
One of the quickest ways to destroy a pool heater, or ruin a liner, is to run the pool in an acid condition. If
the water’s pH level goes too high, the water can turn cloudy, scaling on the liner can occur, and the
sanitizer will be ineffective.
Other optimal water chemistry levels for your pool
It is also important to maintain the Total Alkalinity between 80-120ppm, the calcium level between 200-
400ppm, and the conditioner (chlorine stabilizer) level between 30-100ppm.
The Total Alkalinity, which is a reading of the amount of carbonates, bicarbonates, and hydroxides in the
water, has a direct bearing on the PH of the water. If the Total Alkalinity is off, it is very difficult to maintain
the 7.2-7.6 pH.
At a calcium level of 200-400ppm, the water is considered hard water, and it is less likely to attack the
pool’s equipment. That is why Crystal Pools recommends bypassing the water softener if possible when
adding make-up water. If you have a low cyanuric acid level, the ultraviolet sunlight will react with the
chlorine molecule and dissipate the chlorine very rapidly from the pool; thus costing you a lot more money
to sanitize your pool effectively.
A properly balanced pool will keep your Crystal Pools investment trouble-free for years, and reduce the
amount of chemicals needed to keep that pool “Crystal Clear”. Remember, we also test pool water at no
charge. Just bring in a pint or more to any Crystal Pools location, and we'll do all the tests!
Need some help? Give us a call or stop by!
Our experienced Pool Service Technicians can ensure your pool is appropriately balanced with the
proper pH level. Contact one of Crystal Pools' three locations to schedule service or stop in today.