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How-to Chemicals: Information on pool chemicals

Water Lab-What Products You'll Need for a Clean Pool

Want to know what products to use for certain pool problems? Here are a few suggestions!

High Metal Concentration A high concentration of metals can discolor water and lead to staining and other problems. To remove existing stains, use Doheny Pool Supply Fasts’ All Surface Cleaner and brush the stained area regularly to remove stains. To prevent metal stains in the future, include a dose of Pool Supply Fast Stain Remover with your weekly maintenance routine.

Black Algae Black Algae can be eliminated by using Doheny's Pool Supplies Fast Total Pool Algaecide in conjunction with Doheny's Pool Supplies Fast Shock specific to your pool. You will need to follow the recommended dosage on the package. Run your swimming pool filter overnight to circulate the shock throughout the pool's water supply. It is a good idea to pay attention to areas with existing algae blooms. You may need to backwash your filter during and after this process to prevent high-pressure readings. You will also need to brush the existing algae spots daily using one of our Super Deluxe Brushes to loosen and remove any algae debris until algae spots disappear. To prevent future algae blooms, shock your pool regularly and add a weekly maintenance dosage of our Doheny’s Pool Supplies Fast Algaecide to get the job done right!

Low pH If the pH in your water is low it can lead to corrosion, rapid decrease in chlorine/bromine residual, and also lead to eye and skin irritation. This can be resolved by adding Doheny's Pool Supplies Fast pH Plus according to package instructions. Run your swimming pool filter for two to three hours to circulate and then re-test your water. Repeat as necessary until pH levels are between 7.2 and 7.6 ppm.

Low pH and Alkalinity In order to bring your pool water back into balance, we suggest the following: First, you must correct the alkalinity level by adding Doheny's Pool Supplies Fast- Alkalinity Up according to package instructions. Re-circulate for two to three hours and then re-test the water. Repeat as necessary until the alkalinity level is between 80 and 120 ppm. Because pH and alkalinity levels are so closely related and directly affect each other, it is recommended that you check your pH level the following day and adjust accordingly with either Doheny's Pool Supplies Fast pH Plus or Doheny's Pool Supplies Fast pH Minus until the pH level is between 7.2 and 7.6 ppm.

Low Calcium Hardness If the calcium hardness level of your pool water is too low it can lead to corrosion with heaters and other pool equipment. To increase the calcium hardness of your pool water, add Doheny's Pool Supplies Fast Calcium Plus according to package instructions. Re-circulate the water for two to three hours and then re-test the water the following day. Repeat as needed until the calcium hardness level of your pool is between the recommended ranges of 200 to 400 ppm.

IMPORTANT- Please be advised that there is a difference between Free Chlorine or Bromine and Total Chlorine or Bromine. The Free Chlorine or Bromine readings are the only true level of available sanitizers in your pool's water. Total Chlorine or Bromine readings tend to give you a false reading based on how often you shock or oxidize your pool water. Check the test kit you are using to make sure you receive the most accurate reading for this application. If you are using the Pool Test Strips, you should be fine and should receive a correct reading. If you are using the Comprehensive Pool Test Kit, remember to double check to make sure you have the reading for Free Chlorine or Bromine.

•Follow suggestions and recommendations offered by our Certified Pool-Spa Operators based on your pool/spa readings

•Be assured of continued excellent water quality in the future by using the freshest and the most convenient swimming pool chemicals and sanitizers available only from Doheny’s Pool Supplies Fast.