operating pressure

From time to time, pool owners may have trouble with a swampy green pool. It will often be green or even black in color, and it can take a lot of effort, time, and money to get back to your swimming spot. It’s best never to let the pool get to this point, but if you do, there is a step-by-step method on how to clean a green swimming pool easily and ready to swim.

3 things to purify green water:

1. Filtration
2. Chemicals
3. Operation: cleaning, brushing, backwashing.

Step 1: First, you need to define the filter type. Be it an O.D.filter, sand filter, or cartridge filter, and you need to make sure it is clean and working properly. If the filter doesn’t filter properly, the water will never be cleaned, and you can spend a lot of money on chemicals.

Step 2: Remove large debris. A net of blades is usually the most efficient way to remove large debris at this stage. This will temporarily make the pool worse due to the churning of algae and mud in the water, but everything will return to the bottom after a few hours. (Do not try to suck coarse debris through the filter system at this stage as it can severely clog the filter, skimmer lines, and underground pipes.) Large debris should be professionally removed with a separate powerful vacuum to prevent filter wear and pipes clogging.

Step 3: test the water. All chemicals must be within the specified limits:

Bromine 2-3 hours / Million

Chlorine 1-3 ppm

PH 7.2 – 7.8

Stabilizer 30-150 ppm

Total alkalinity 100 – 150 ppm (vinyl) 80 – 120 ppm (gypsum)

Calcium hardness 200 – 300 ppm (vinyl) 250 – 400 ppm (gypsum)

Iron or copper Less than 0.3 ppm

Phosphates Less than 100 ppb

Step 4: Treat the pool with a liquid or granular super chlorinator. Liquid shock generally works faster, but the granular shock is usually more effective. For green pools, a percussion pool with twice the recommended gallons in your pool. Then clean the floor and walls. Add a quality algaecide. Clarifiers should also be added to sand and cartridge filter systems to speed up dead algae collection.

Step 5: Let the filter work for 24 hours and wash it 3-4 times a day. Open the cartridge filters and rinse the cartridges. Green or cloudy water will clog the filter quickly so that a large backwash will clean the pool faster. When using the D.E. filter, make sure the required amount of D.E. is Replaced after every backwash.

Step 6: The water should turn clear and cloudy. When cloudy, shake again and then brush again.

Step 7:  As water quality improves, debris on the floor will become more visible. Small amounts of debris can be removed using the pool’s filtration system.

Step 8: Adjust all chemicals to be within the proper range and check for phosphates. (See step 3)

Step 9: Run the filter 10 to 12 hours a day and maintain the chlorine level with slow dissolving tablets or stabilized granules.

Additional Tips: – If you follow these instructions and the pool is not cleared within 4-5 days, the filter may not be working properly and should be checked by a professional.

– Chemical levels should be checked twice a week to make sure they are within the proper range.

– Make sure the filter is back washed regularly.

– Backwash when filter pressure is 6 to 8 pounds above the normal operating pressure