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Frequently Asked Questions


Learn more or ask about your pool or spa.

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How often do I need to test my pool water?
Weekly testing works for most backyard pools, but the best bet is to test your pH and chlorine levels at least twice per week. Chlorine should be fed continuously through a chemical feeding device to maintain a consistent level.
How long do I have to wait to use my swimming pool after chemical treatment?
Generally it is safe to use your pool after chemicals have dispersed throughout the pool, usually 15 minutes to one hour. If shocking your pool, wait until the chlorine levels drops to recommended levels.
How long should I wait to get into the water after the water treatment?
How long to wait after a treatment depends on the chemicals you are adding. Typically, you will want to wait for the water to turn over one full time (all the water to pass through the filter), which typically takes 8 to 12 hours.
What is the Correct Balance for My Pool Water?
Test Range
pH 7.2-7.6
Total Alkalinity 120-150 ppm
Calcium Hardness 200-250 ppm (Gunite)
Calcium Hardness 175-225 ppm (Vinyl)
Free Chlorine 1-3 ppm
Free Bromine 3-5 ppm
Copper 0 ppm
Iron 0 ppm
Why is it important to be sure that my pool water’s chemistry is correct?
You want to be sure to provide a sanitary swimming environment, balance the water to protect the equipment and pool surfaces and provide inviting, sparkling water to swim in.
How do I know if there is enough solar energy in my area to heat my pool?
Studies have shown that there is enough solar energy in all parts of the United States and into Canada for you to enjoy a longer swim season with a solar pool heater.
How will energy-efficient products make a difference in my backyard and my power bill?
Depending on the size of your pool, filtration equipment, and heating requirements, your energy driven equipment may operate up to 12 hours per day to properly circulate your water for effective filtration. A small increase in efficiency can yield larger savings later; therefore, the right pool equipment is essential to your power bill. Whether you're building a new pool or replacing existing equipment, your equipment selection can save you a significant amount of money in the long run.
Once I have my new energy efficient equipment, what other steps can I take to ensure maximum energy efficiency?
  • Invest in a pool controller or timer.
  • Use a pool cover or thermal blanket on your pool when it's not in use. Evaporation accounts for 70% of heat loss from your pool.
  • Add wind breaks to your pool. (A 7-mph wind at the surface of a pool can increase energy consumption 300%!)
  • Set your pool water's temperature between 78° for most applications.
  • Maintain top operating condition of your pump, filter, and heater.
  • Maintain proper water chemistry.
Do I need a fence around my spa or hot tub?
Yes, a pool fence should also enclose the area around a spa or hot tub.
How often should I change the water in my hot tub?
It is a good idea to completely drain and refill your hot tub every 8 weeks. If you do not use the hot tub as often, you can generally go 12 weeks between water changes. Making sure that your hot tub has fresh water will also guard against the possibility of the heater coil corroding prematurely.

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  • Terry Howald pools
  • 274 Courtland Ave. E. Kitchener, ON N2G 2V7
  • 1-888-708-7665
  • 1-519-578-0889
  • info@terryhowaldpools.ca

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