• +1 (888) 818 POOL
  • swimmingpoolsteve@gmail.com

Results From Extremely High pH In Pool Water

This is a very interesting case about an indoor concrete pool that was left running for almost a year with no chemical testing or balancing. This system was running a salt water chlorinator that must have kept the water clear enough to not turn green as the pool water was not green on arrival. It was however very turbid and the full extent of the calcification was not realized until the pool was drained.

The customer had used the pool after a long period of neglect and had mentioned that one of his children received a cut on their foot. This prompted the call for service and the video results that you see here.

In this case we were able to scrape the calcium together which left a (mostly) smooth interior surface. We then acid washed and scrubbed the pool before refilling. In this instance, operating the pool and maintaining a proper water balance was enough to remove the remaining calcium from the walls and floor. This customer was extremely lucky that there does not appear to be any permanent damage to the interior surface, glass tiles or the metal handrails in the pool. The equipment we had on hand was not able to get an accurate pH and calcium hardness levels but the pH was believed to be over 10 and the calcium hardness levels over 1000ppm. What is most interesting is that the salt cell was able to keep the pool clean as it must have been calcified completely. The equipment had all been removed prior to our arrival as there was some mechanical work being done by another company in the house and they took on the task of replacing the pool equipment. It is possible, as this pool is indoors, that the water did not turn green since there is less contamination, UV degradation of chlorine etc.

If you can provide Swimming Pool Steve with more information about the chemical process involved with percipitating this much calcium from pool water, Steve would be interested in hearing from you for a brief email exchange to discuss this in greater detail.

It is important to understand that the crystal formation and chemical reaction that you see happening with this swimming pool is not normal or an indication of how salt water chlorinators function in swimming pools. This level of damage is a result of extreme chemical imbalances which would not normally happen as a result of day-to-day operation and maintenance of a salt water pool. This level of damage would be best described as negligent levels of salt water pool maintenance over an extended period of time. While salt water systems for swimming pools do warrant special considerations due to some potential for damage as a result of galvanic corrosion and the elevated salt level in your pool increasing the electrical conductivity of your water, salt water pools are a legitimate option with minimal risks to the pool when researched and operated properly. For more information you can read this article about how to get informed about salt water.

Variable speed pool pump reviews

Pool and spa chemistry crash course

New pool owner guide

Proof of variable speed pump savings

Is salt water bad for pools?

The Swimming Pool Steve blog

Have a question - ask Steve

Swimming Pool Steve

If you want to continue learning about pools and spas from an industry expert follow swimming pool Steve on Facebook, Twitter and YouTube

Endorsed Brands From Swimming Pool Steve

The following links and products are to affiliates of the Swimming Pool Steve website. These are brands, products and services hand selected by Steve for endorsement. Please note that these endorsements can include monetary compensation, affiliate links and referral fees to Swimming Pool Steve, however there is zero additional cost to you should you use one of these products or services. Income generated from these links helps to keep this pool and spa resource available for everyone. To have your product or service considered for listing here as an endorsed brand email SwimmingPoolSteve@gmail.com.

Amazon Disclosure Statement - As an Amazon Associate I earn from qualifying purchases.


If you need to order swimming pool equipment, parts or chemicals online then you should choose to buy from a specialist that deals exclusively with pool and spa products. InTheSwim.com would be my recommendation to pool owners looking to shop online for pool and spa supplies.

- Swimming Pool Steve

Basecrete flexible bondcoat

I can not stress enough the importance of using a waterproofing solution for concrete swimming pools. When it comes to the technical process of waterproofing concrete pools Basecrete is the most effective product that I know of. I strongly endorse the use of Basecrete products to all concrete pool owners.

- Swimming Pool Steve

LightStream swimming pool financing

Pool installations can be very expensive especially when you start to add optional extras. Building a pool is a once in a lifetime event for most people and it is important to get the pool you want. Swimming pool financing can help you get the pool you want and make sure you have the money you need to do it right the first time.

- Swimming Pool Steve

Pool Supplies Canada

When it comes to ordering pool and spa supplies online in Canada www.PoolSuppliesCanada.ca is by far the best option. They carry everything from chemicals to replacement pumps to entire pool kits, with free shipping options and more "in stock" items than any other Canadian online retailer.

- Swimming Pool Steve