Home Water Care 101 - The Basics of Water Chemistry
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Atlantis is Your Water Testing Expert in Tecumseh & Essex!

Equipped with a computerized water testing lab at our Tecumseh & Essex Ontario locations, our trained staff can test your water and have the readout in your hands in 5 minutes!

It could save you hours of guessing of what to do next and our staff can guide you to perfect water chemistry, healthy, sparkling water and save you money in the process.

No one wants to swim or bath in green water!

Whether you have an indoor or outdoor, private or public swimming pool or hot tub, it is a source of fun, relaxation and exercise, therefore it needs to be kept in perfect condition at all times. This means not only the maintenance of the mechanical equipment, but also ensuring the water is kept in sparkling condition.

Know what your equipment does

You don't have to be a pool expert or qualified installer, but it does help to re-read the instruction manual you got with your pool and familiarize yourself with the basic components of your system.  Proper filtration is 50% of keeping water sparkling and safe, so you understanding where the water goes when it gets sucked into the skimmer or the main drain at the bottom of the pool is extremely valuable to your quest for perfect water.

Basic components of Water balance

Calcium Hardness

  • This will vary depending on where you live and where your water supply comes from and it is very important that the correct level is established. As a guide soft water tends to be low in Calcium Hardness and hard water more obviously is high. The level should be checked each time you top-up or refill the spa with fresh water.
    The ideal Calcium Hardness level for spas is between 100 - 200mg/l.
  • When it is below this level the water could be corrosive which could lead to damage of plant equipment such as the heater. If this is the case apply Hardness Plus to achieve the correct level.
  • When it is above this level the water has a tendency to appear cloudy and also calcium can precipitate out and deposit itself on the spa shell finish, heater element, cartridge element & within pipework. If this is the case apply No Scale to achieve the correct level.

Total Alkalinity

  • This will again vary depending upon your water source so must be checked each time fresh water is added. It acts as a buffer to prevent pH change and if the level is too low the pH will fluctuate widely, if too high pH adjustment will be difficult to effect.
  • The ideal Total Alkalinity for spas is between 125 - 150mg/l.
  • When it is below this level not only will pH fluctuate but the water could be corrosive, cause damage to equipment and be uncomfortable to bathers.
  • When it is above this level not only is pH difficult to adjust but also the water could be scale forming and clarity impaired.

pH Levels

  • Regular pH checks are an essential part of your spa maintenance routine using Test Strips.
  • The pH scale has a range of 0 - 14 with 0 being very acidic, 7 being neutral & 14 being very alkali. For spas the ideal range is between 7.4 - 7.6, this being slightly alkaline to protect the spa and prevent equipment corrosion. This also provides the most comfortable conditions for bathers and good sanitizer efficiency.
  • If the level is below 7.4 use a pH increaser to raise the level.
    If the level is above 7.6 use  Use a pH decreaser to reduce levels.
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