Pool Chemicals

There are many different types of chemicals used in the care and maintenance of a swimming pool. We use chlorine, muriatic acid, cyanuric acid(chlorine stabilizer), salt, calcium hardener, calcium softener(PH Balancer), PH riser(sodium bicarbonate), and shock.

Swimming Pool Chemicals-Chlorine

Chlorine-chlorine is either created using a salt water generator or added to the pool in various forms. The type of chlorine that Splash Dr. uses in most swimming pools is chlorine bleach. This chemical is very similar to household bleach.

If using a salt water generator, the salt in the water(sodium chloride) is run through an electrolyzed metal plate that is able to combine with the chloride creating chlorine. When this chlorine is then returned to the swimming pool it connects back up to turn back into sodium chloride or salt. What all this means to simplify is that even though you technically have a salt water pool, the salt water is converted to chlorine. This makes all swimming pools chlorine swimming pools.

When Splash Doctor adds chlorine, we use the liquid form to prevent unwanted cya excess from being added at the same time.  The use of chlorine tablets increased the cya level at the same time it increases the chlorine level. Usually, the effect of this is a swimming pool becomes unbalanced. Your pool’s chlorine level will be expressed in terms of parts per million or ppm. Your CYA level determines the required chlorine parts per million.

Acid levels need to remain balanced in swimming pools and spas

Pool Chemicals-Muriatic Acid

Muriatic acid is used to help the PH level in a stabilized swimming pool to regulate. Normally PH will increase over time. Muriatic acid helps combat this. The PH level can increase more rapidly with quick increases in temperature, aeration, and an increase in chlorine.  We keep the PH at a proper level by adding muriatic acid. We typically try to keep your swimming pool between 7.2-7.8 with 7.6 being ideal. 

If for some reason your swimming pool has an extremely low ph we can add (ph riser) to increase it back up to reasonable levels.  The threat to your swimming pool with extremely low ph levels is increased plaster wear and shorter plaster life.  The threat to a PH that is too high is scaling and build-up. 

Pool Chemicals-Cyanuric Acid

Cyanuric acid is different than muriatic acid. In order to most efficiently use chlorine in a swimming pool, our swimming pool service technician will add cyanuric acid or CYA which is sometimes called a stabilizer. This chemical helps to prevent the sun from being able to burn through your free chlorine levels at too rapid a rate.

Excessively high CYA levels, however, can cause a higher demand for chlorine, for the same given result, as would be required at lower CYA levels.  Salt water pools also have different requirements for CYA/chlorine relationships as simply chlorine swimming pools without salt water generators.  Our technicians understand these relationships and will maintain your pool at a proper cya and chlorine level To keep your water clear. 

Salt in your swimming pool

Salt is found in almost all culinary water to one degree or another. In a swimming pool that utilizes a salt water generator, you will require an increased salt concentration.  Typically salt levels in salt water swimming pools will be from 2800 parts per million to 3200 parts per million. This can vary by salt water generator type and manufacturer’s recommendations for your particular generator might be different.

Splash Dr. will ensure your salt levels are at the proper ppm for your particular salt water generator. This ensures your generator creates the most possible chlorine for the run time that it can.  If your swimming pool salt level is low, one of our swimming pool service technicians will add enough to bring it back to the proper levels.

By keeping your pool chemicals in check, you will be able to keep your swimming pool and spa plaster beautiful for life

Calcium hardener can be used in the rare event you have low levels of calcium in your swimming pool. Concrete gunite or shotcrete swimming pools with a plaster finish typically will slowly increase the calcium hardness level over time. If you have ever seen hard water, which in Southern Utah is everywhere, this causes all kinds of issues for your swimming pool.

Occasionally we need to adjust this level up or down to ensure the proper level is reached. To increase your Calcium level we add a calcium hardness increaser. To decrease the level we either remove some water and replace it, add muriatic acid, or we can reduce it by adding a sequestering agent. The best solution for high calcium levels is to not let them get there in the first place! Every time you shock your pool with Cal-Hypo or something similar you add calcium. We know water is hard in Southern Utah, which is why we shock all our pools with liquid chlorine. This does not add any calcium and keeps your water clean and sanitized much more efficiently.

By maintaining a proper PH your calcium hardness level will be more stable and you prevent excessive calcium deposits on tile and finish work and keep calcium levels in the plaster optimum. This in turn will extend the life of both your plaster as well as your tile and grout. Your plumbing and equipment will also be helped.

When Should I Shock My Swimming Pool In St. George Utah

We find the need to shock/slam a swimming pool when a pool has been neglected or just isn’t maintaining stabilized levels for a client. Usually, there is either algae or bacteria growing.  Our pool technician can run an overnight free chlorine test and determine pretty quickly if your swimming pool has algae living in it. If this is the case, the level of your chlorine will need to be increased to what we call the slam/shock level.  This level is based on your CYA and type of pool.  

We will keep your swimming pool at the slam/shock level for as long as it takes until your overnight chlorine test passes. At that point, we will let the sun do its work and bring your chlorine level back down to swimmable levels. Our swimming pool weekly service will maintain your chlorine and cya levels appropriately so hopefully you never have to shock/slam your pool after the initial correction however sometimes algae can still form. By weekly testing, we ensure your pool stays at the optimal level of chlorine to prevent this from happening.

If you would like a free water test and consultation for your swimming pool schedule it today!  If you would like to maintain your swimming pool on your own, Splash Dr. provides chemicals as well.