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Safe Operation and Maintenance of Your Hot Tub [PART 1]

Safe Operation and Maintenance of Your Hot Tub [PART 1]

What should i know about hot-tub chemicals? The chemicals needed for your spa or hot tub help make it clean, safe, and more attractive to use. But, remember that these chemicals are potentially dangerous and may present some hazards if not used properly. Carefully follow the manufacturer’s instructions for the use and storage of chemicals. 

In general, here are some tips for chemical use and storage:

  1. Before using chemicals, read the labels and directions carefully. Follow label use instructions.
  2. Keep all chemicals out of the reach of children.

”Don’t guess with chemicals. Before using, read the labels and follow the directions carefully. Be sure to store them correctly.”


  1. Chemical reagents for test kits should be replaced each year.
  2. Keep the original lids on all chemical containers and make sure the lids are tightly closed when not in use.
  3. Do not stack different chemicals on top of one another.
  4. Store your spa or hot tub chemicals in a clean, cool, dry, well ventilated area, preferably off the floor, to prevent contamination from other materials. Never store chemicals near the spa or hot tub heater. Always keep them away from chemicals and equipment used for garden and lawn maintenance. Keep acids away from other chemicals.
  5. Keep liquid chemicals away from dry chemicals. Physically separate different forms of chemicals. Chemicals that are labeled as “oxidizers” should be kept apart from other chemicals.
  6. Do not store your spa or hot tub chemicals where other flammable items may mix with them. For example, a mixture of these chemicals and fertilizer can cause a fire or explosion.
  7. Wash your hands thoroughly after using chemicals


  1. Never mix two chemicals together. Use a clean scoop for each chemical, and never combine material from “old” and “new” containers.
  2. Always add chemicals to water. Never add water to chemicals.
  3. Always add chemicals directly to the spa or hot tub water, either in a suitable feeder, distributed across the surface of the water, or diluted and poured into the water. Follow label use instructions.
  4. When preparing water solutions for feeder application, pour the chemical slowly into the appropriate amount of water, stirring constantly to provide mixing and dilutions.
  5. Never add chemicals to the spa or hot tub water while people are using the facility.
  6. Carefully clean up any spilled chemicals with large amounts of water, to dilute and wash away the chemicals. Check with local authorities before sending disinfectants and pH adjustment chemicals to the sewer as waste.
  7. Wash out empty chemical containers before disposal to eliminate the danger of fire, explosion, or poisoning.
  8. Test the water in your spa or hot tub with a reliable test kit on a schedule recommended by your spa or hot tub professional. Add the necessary chemicals according to the test results and the manufacturer’s instructions. In the hot water environments of spas and hot tubs, disinfectants may rapidly break up and spread out, requiring more frequent water testing. (The higher temperatures deplete the chemicals faster.) Follow your manufacturer’s instructions in this regard. Also, the more people who use the facility, the more frequently you should test the water.
  9. Do not inhale dust or fumes from any chemicals. If necessary, use proper protective devices for breathing, handling, and eye protection. Promptly wash off any residues that get on your skin.
  10. Never reuse old chemical containers.


If you have any questions regarding safe handling, storage, or use of spa or hot tub chemicals, please contact us on 01179 714868

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