Calcium Deposits: Calcium Carbonate vs. Calcium Phosphate - Aquanomics Pools

Aquanomics Pools is a family owned pool and spa repair business, offering a wide range of resources for your natatorium needs! We pride ourselves on delivering safe and proper care for swimming pools and spas, including maintaining up-to-date certifications and licensure for a Pool-Spa Operator through the National Swimming Pool Foundation. Our trained technicians diagnose any mechanical issues, such as clogged filters or pumps or heater related troubles. Aquanomics’ staff dedicates time to provide each pool with the proper aquatic service and maintenance required, so you can safely dive in and enjoy your watering hole again!

Calcium Deposits: Calcium Carbonate vs. Calcium Phosphate

Mysterious Pool Deposits

Chemical imbalances, high pH levels, temperature changes and high concentrations of calcium causes surface staining or scaling. Calcium deposits often form along the edge of your pool’s wall and occasionally clogs filters. There are often signs when these deposits begin to form – cloudy water, white or grey scales around the edges of your pool, and they are even sometimes seen floating on your water’s surface. What’s important to diagnose is the type of calcium affecting your aquatic system: Is it Calcium Carbonate or Calcium Phosphate?

Chemistry 101

Both forms of calcium deposits present a nuisance and produce similar symptoms. Most tile cleaning products used by the average home consumer are carbonate based; however when dealing with a phosphate problem, these materials do not provide a simple solution and in fact, might aggravate the issue.

  • Calcium Carbonate. A regular hiccup facing many pool owners is commonly caused by high calcium levels, a pH greater than 7.8 or high alkalinity.
  • Calcium Phosphate. Believe it or not, the issue of rising phosphate is often man-made. Several metallic stain removal products contain higher levels of phosphoric acid and when mixed with concentrated amounts of calcium, this creates problems. Though typically it takes more than baseline levels of phosphorus to cause increased scale formation, rising heat speeds up this reaction, causing phosphate to precipitate and build-up near the heater.

Pool issues are wide and varied; some are even deceiving to an untrained eye. When dealing with scale formation it’s essential for proper diagnosis by skilled aquatic mechanics. Whether you are looking for simple repairs or require weekly maintenance, Aquanomics Pools’ educated and licensed staff are here to help you address your pool or spa needs! Connect with us for more information and for quick resolutions to all your aquatic issues!