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5 in 1 SWIMMING POOL AND SPA WATER TEST STRIPS - 50 STRIPS
The Best Pool Supplies 5 in 1 Pool and Spa Test Strips are the simple and effective way to test your pool and spa yourself. With a simple dip test you can know your pool or spas total water balance in only 15 seconds, without the need for complex chemical reactions, or to take a bottle into a pushy pool shop. With these strips you will easily see your pool or spas TOTAL HARDNESS, TOTAL CHLORINE, FREE CHLORINE, pH and TOTAL ALKALINITY like a pro.
TOTAL HARDNESS - This is the amount of Calcium Carbonate that is dissolved in your Pool or Spas water. If you pool water is too Soft (Low Calcium Carbonate) it can become mildly corrosive, and will try to leach calcium from your pools surface, damaging it. If it is too Hard (High Calcium Carbonate) difficult to remove scale deposits will form, looking unsightly and being a danger to soft skin.
TOTAL CHLORINE - This is the total amount of Chlorine present in your Pool or Spa, Both FREE CHLORINE (see below) and Combined Chlorine (Chlorine that has been “used up”). If TOTAL CHLORINE gets far above FREE CHLORINE, it means that your pool needs to be Shocked (a super dose of CHLORINE) to clear up the COMBINED CHLORINE and reduce the total amount of Chlorine products in your Pool or Spa.
FREE CHLORINE - This is your pool or Spas primary sanitizer and must be maintained between 1-3 ppm. In this range your FREE CHLORINE will “eat up” contaminates, keeping your water clean and safe.
pH - This is the measure of your Pool or Spas Acidity or Alkalinity and should be kept between 7.2 and 7.8 for comfort, and to ensure that your Chlorine sanitizes effectively.
TOTAL ALKALINITY - Total Alkalinity is a measure of the substances in your Pool or Spa that resists changes in your pools pH. Keeping these levels correct prevent sudden changes to your pools pH, and reduces the chance of scale build up on the pool surfaces.