pH is the measure of acid and base in the pool water. The pH of the pool should be tested and adjusted, if necessary, on a weekly basis. If the pH of the pool water drifts to the acid side of the scale, corrosion of pool surfaces and equipment can occur. If the pH of the pool water drifts to the base side – scaling, deposits, and cloudy water can occur. Use a pH increaser to increase the pH of the pool. At 8.5, chlorine is only about 10% active. At 7.0, chlorine is about 73% active. If you maintain pH around 7.5, the chlorine will be 50-60% active. Keeping the pH in check will allow you to use the full potential of the chlorine that is already in the pool. To lower the pH of the pool, use a pH decreaser. Follow the label directions for the proper amount of the products to add based upon test results and pool size. Take a sample of water to your pool professional dealer every 2-3 weeks for complete test and analysis.
NOTE: Always follow label directions when adding any pool maintenance products to the pool. Never mix products together. If unsure how products are to be used, contact your local pool professional.
Calcium Hardness is the amount of dissolved calcium in the pool water. Low calcium hardness levels can cause plaster finish etching and shorten the life of vinyl liners. High calcium levels can result in calcium deposits on the pool surfaces as well as equipment. The proper range for calcium hardness in pool water is 200- 250 ppm (parts per million) for concrete pools and 175-225 ppm for vinyl pools. Your pool professional can advise you of the best method for treating your pool if you encounter high calcium hardness. If tests indicate that you have extremely high calcium levels in your pool, take a sample of your fill water (water used to fill the pool) to your pool professional for analysis as well.
To prevent the pH varying up and down, the proper amount of acid buffers, or total alkalinity, must be maintained in the pool. The pool should be tested weekly with a total alkalinity of 1 20-150 ppm (parts per million) maintained. Low total alkalinity can not only result in pH bounce and fluctuations, but corrosiveness and the possibility of staining increase. High total alkalinity also can cause the pH to fluctuate as well as cause cloudy pools along with possible scaling. To lower total alkalinity, follow the directions from your pool professional. To raise total alkalinity, an alkalinity booster is recommended.
There should not be any metals present in your swimming pool water. Metals can cause staining in the pool and cause the pool to turn colors. The most common types of metals that appear in pool water are copper, iron, and manganese. If metals are present in the pool, a stain and scale remover should be used on a regular basis to prevent staining. You should determine the source of the metals and remove if possible.
Sanitize with Chlorine
Stabilized chlorine products sanitize your pool water and kill bacteria. Stabilized chlorine products are protected from sun light degradation and are an ideal means to keep your pool clear and clean. Most stabilized chlorine products are available in a variety of forms:
- Chlorinated Tablets 3”
- Chlorinated Tablets 1”
- Skimmer Sticks
- Multi-functional Chlorinating Granules
Chlorine Generation takes the hassle out of sanitizing your pool water. Salt in the pool water (2,500-3,500ppm -compared to the ocean is 35,000 to 40,000) is ionized to create chlorine gas and is injected directly into your pool water. You can run at a much lower residual chlorine level (0.5 to 1.0 ppm vs 3.0-4.0 ppm) than with chlorine tablets. Salt water chlorination, or chlorine generators are better for your skin, eye, hair, lungs, clothes, towel, pool surface, and pocketbook. Why buy tabs when you can make your own chlorine?
Aqua-Ducks can determine the best form and type of sanitization program for your particular needs. A free chlorine level of 1-3 ppm should be maintained in the pool at all times.
NOTE: You will get more out of chemicals if you add them after the sun has set.
Sanitize with Bromine
You may want to use bromine instead of chlorine to sanitize your pool. Bromine tablets provide a reliable method for killing bacteria and keeping your pool clear and clean. To utilize bromine effectively, an automatic brominator should be installed in your pool.
Shocking the pool on a regular basis is an important element in keeping the pool clear and clean. Swimmers and the environment add waste to the pool that must be eliminated on a regular basis in order to prevent problems such as algae and cloudy water.
Preventing algae is the key to an enjoyable pool. Algaecides act as a backup to your normal sanitization program and prevent algae from starting and growing in the pool. Algaecide should be added after every shock treatment.