How to Clean Up a Green Pool

If you are looking for how to clean up a green pool then you are in the right place. This is how Chlorine King cleans out the pools he’s hired to do. Below is a video on how he does it!

Here’s some bullet points for how we clean up a green pool.

Day 1

  1. Check to see if the pool needs to be acid washed. Ask the client how long it’s been green. Can you notice deep stains and thick algae stuck to the walls? If so an acid wash may be the best way.
  2. If you are not going to acid wash it, check the stabilizer level. It should be in range between 30-50ppm. If it’s in between 50 and 100 you should be ok and can slowly bring it down through adding fill water, rains, etc. If it’s over 100 I’d consider doing a partial drain and refill to get the chemical in range. If it’s too high it’s going to be a battle to keep the pool clear after the clean up process is done.
  3. If CYA (stabilizer) is in check then test for PH. It will more than likely be high. Then we can figure out an estimate of how much acid to add. We want the PH between 7.0-7.2. Note: The lower we keep the PH the more effective Chlorine is. In other words a chlorine reading with a PH of 7.8 is a lot less effective than a chlorine reading at a 7.2.
  4. Try to get as much debris off the floor as you can. This will help the pool clear up quicker.
  5. Add the acid, and brush every square in of the pool including the floor. We want the algae to be stirred up in the algae so we can kill the algae.
  6. If you have a cartridge filter, remove the element for the first 24 hours. If you have a sand or DE filter, then put the filter on recirculate.
  7. Turn on the filter only after step 7, and keep the system running 24/7. Introduce the chlorine. I love using liquid chlorine and Calcium Hypochlorite (Super Shockwave) brand. You need to do a calculation based off your sized pool and what you want the chlorine level to be. This is a good program to calculate how much chlorine you need.

Day 2

  1. Retest the chemicals. Keep the chlorine at shock level and the PH between 7.0-7.2.
  2. Add acid if above 7.2.
  3. Brush the pool down really nice and stir everything up.
  4. If the pool water has turned blue with a white tint, go ahead and put the cartridge back in or put the sand/DE filter in filter mode. Keep filter running 24/7.
  5. Add more chlorine if necessary.

Day 3

  1. Clean the cartridge or backwash the filter.
  2. Repeat steps 1-5 from Day 2.

Days 4-10 (if it takes that long)

  1. Repeat day 3 until pool is clear.
  2. Once the pool is clear, rebalance the water to make it safe to swim in.

Helpful tips:

  1. Always keep PH between 7.0-7.2 throughout this process.
  2. If you have a sand filter you can add a cup or two of DE to help the sand filter work better.
  3. If you are able to clean the filter out 2x per day (every 12 hours) to keep the process moving as quickly as possible.
  4. Keep the system running 24/7 so in order to clear the pool as quickly as possible.
  5. If you’re using Calcium Hypochlorite as your main source of chlorine you will need about 4 ounces of acid per pound of cal-hypo to offset the PH increase the cal-hypo provides.

If you have a green pool! [button text=”Let us help you!” link=”https://chlorinekingpools.com/contacts/” style=”default” size=”large” target=”_self” display=”inline” icon=”no”]

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