Get New Pool Water Safe Swimming Condition

How to Get New Pool Water in Safe Swimming Condition

Congratulations! You have a new pool! Whether it’s a fiberglass pool, vinyl liner pool or concrete pool, you will want to get the water perfectly balanced before you do your first cannonball. This process will take two to three weeks.

(This post How to Get New Pool Water in Safe Swimming Condition first appeared on SFGate.)

Things You Will Need

  • Nylon pool brush
  • Water test kit
  • Baking soda
  • Muriatic acid
  • Sequestering agent
  • Chlorine

Steps:

  1. Turn on the pool pump and filtration system. Allow it to run continuously until the pool is clean and the chemicals are balanced.
  2. Test the pool water for pH, chlorine and total alkalinity. A variety of test kits are available at any pool store.
  3. Adjust the pH until it is between 6.8 and 7.2. Bring up a low pH rating by adding baking soda or lower a high pH with muriatic acid diluted in water. These chemicals also affect the total alkalinity, which should be between 70 and 80. Ensure that both pH and total alkalinity are within the desired parameters.
  4. Add a sequestering agent according to package directions. Sequestering agents suspend metal particles in solution and help to prevent staining or scaling.
  5. Allow two days for the pool balance to settle. Keep the pump running and test the pool water daily.
  6. Add chlorine until the chlorine level is between 1.0 and 2.0. Although some sources allow chlorine levels as high as 3.5, this may be irritating to skin and eyes. Allow 24 hours for the pool chemicals to stabilize.
  7. Raise the pH to between 7.2 and 7.8. The ideal pH is 7.4 to 7.6, but slight leeway is acceptable. Raising the pH will raise the total alkalinity, which should read between 80 and 120 in concrete pools and 125 to 170 in vinyl, fiberglass or painted pools.

Tips

  • As you’re conditioning the new water, brush all parts of the pool twice per day with a nylon brush. Pay particular attention to corners and crevices where dust and debris hide. Continue brushing twice per day until the pool chemicals are balanced and the pool is ready for swimming.
  • Use a manual pool skimmer daily to remove floating debris.
  • Wait 30 days to turn on a salt-based cleaning system, turn on a pool heater or begin using a pool vacuum. Wait 21 days before installing an automatic pool cleaner. The waiting period gives the pool’s finish time to cure, avoiding possible damage.
  • Consider adding an algaecide after all other pool chemicals are balanced. Follow the manufacturer’s instructions regarding the proper amount to add and how long to wait before swimming.

Warnings

  • Pool chemicals are extremely caustic. Use gloves and goggles when handling chemicals. Wear old clothes and avoid adding chemicals during windy conditions. Tightly seal chemical containers and store them away from pets and children.
  • Do not “shock” or overchlorinate the pool except under the guidance of a professional.

(This post How to Get New Pool Water in Safe Swimming Condition first appeared on SFGate.)

 

Here’s two final things to keep in mind, from pHin’s resident water chemist, Christian Ballard elaborates:

  • Monitoring the water chemistry at least once per day for the first two to three weeks is crucial to preserving the surface and related plumbing and equipment. (Emphasis for cementitious (plaster/pebble, etc.) on the importance of brushing at least twice daily.)
  • The surface is curing for up to 21 – days and lots of dusting and various minerals rise to the surface of the finish. Very important to disrupt the dust by brushing to prevent buildup and blemishes.
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