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High Calcium Hardness Will Destroy Your Swimming Pool

There are many issues of having high Calcium Hardness (CH) levels in your swimming pool! When it comes to calcium in tap water there are certain places in the country that have much more than others and Southern California/San Diego is one of them. In those places, the calcium coming out of the tap water is higher than what is recommended for a swimming pool but it’s important to note that swimming pools need a certain amount of calcium to keep the interior finish intact. It is when those levels get too high that problems arise. For swimming pools, the industry standard and recommended amount of CH is between 200 – 400 parts per million (ppm) but in certain areas of the country, the calcium hardness coming out of the tap is already over 400ppm! The challenges for residential and commercial swimming pool owners is when calcium levels get too high in their swimming pool. When these levels continue to climb scaling occurs on the water tile line, the interior finish, filtration equipment, decorative water features, spillways, and salt chlorinators (if you have one). It can also be challenging to manage the water chemistry too! If you happen to have a saltwater chlorinator, high levels of calcium hardness will prevent it from functioning properly.

So what happens when calcium levels get too high? The simple answer is it must be lowered from the swimming pool water. At this point you can choose to drain and refill your swimming pool which takes 2-3 days, can damage your interior finish and you will be filling it back up with your cities hard water or you can recycle it using The Puripool Process. At Pure Water Industries, we offer Reverse Osmosis (RO) mobile filtration to lower calcium hardness, total dissolved solids, cyanuric acid, phosphates, salts, and waterborne diseases without draining the swimming pool. This service puts drinking quality water back in your swimming pool and you can swim in the pool while it is being filtered. Not to mention, we conserve up to 85% of the existing water in the swimming pool which is great for water conservation.

Just this past week we had a residential swimming pool customer that has a 25,000-gallon pool that was dealing with high levels of calcium and we want to highlight how our service helped them. The following is their initial chemistry:

Calcium hardness – 820ppm

Total dissolved solids – 5054ppm

Cyanuric acid – 50ppm

After filtering this 25,000-gallon swimming pool for 16-hours with RO filtration we were able to leave them with the following chemistry which is far below San Diego tap water levels:

Calcium hardness – 130ppm

Total dissolved solids – 872ppm

Cyanuric acid – 0ppm

Our customer now has drinking quality water in their swimming pool and is left with the best water quality possible. By choosing to use our service, they will be able to swim in water that feels better too. If you’re curious how this service will work for you, please contact us today!