Green Pool Water

Clearing Up A Green Swimming Pool On Opening

If your pool is already green upon opening it, please first read our post How To Open An Above Ground Swimming Pool or How To Open My Inground Swimming Pool.

We suggest the following procedure:

1. Remove most of the large debris from the pool floor with a large leaf net (better than a hand skimmer). This will stir up the water, and may make your pool look much worse temporarily, but the stirred up debris will settle within a few hours. DO NOT ATTEMPT TO VACUUM THE POOL IF YOU CANNOT SEE THE BOTTOM OF IT OR IF YOU HAVE A LOT OF DEBRIS ON THE BOTTOM. YOU MAY CLOG YOUR SKIMMER, FILTER OR UNDERGROUND PIPES.

2. Adjust the pH and Alkalinity levels of the water using pH Plus (baking soda), pH Minus (muriatic acid) and (optional) Alkalinity adjustment (should be OK if the pH is normal). These levels must be within the proper ranges or the water may not clear completely.

3. Shock the pool. This means (super) chlorinating the water to kill off any bacteria and algae. If your pool is very dirty, it may need MANY gallons (several 10 L pails) of liquid chlorine (shock) over a period of days before the water clears.

Start off by adding 3 or 4 gallons, and if you see no results overnight, add 3 or 4 more gallons the next day. Continue this process until you notice the water changing color to either cloudy white, light green or clear. YOU CANNOT OVER SHOCK A POOL ! The more you add, the quicker it will clear ! Note…shock is available in liquid or powdered form, but we recommend against using powdered shock (it works too slow and could compromise the efficacy of the free chlorine). You may also want to add a high quality algaecide such as CLEAN & CLEAR MINERALS from C-Pool Minerals to the water at this point.

4. Run your filter 24 hours a day and backwash 2 times a day for quickest results. Green or cloudy water will quickly clog a filter, therefore you may have to backwash your filter many times a day until the pool clears. Run the backwash cycle for 60 – 90 seconds. The more you run your pool, and the more you backwash the filter, the faster the pool will clear up. If you have a D.E. filter, remember to add new D.E. to the skimmer closest to your filter after each backwashing. A D.E. filter is more work than a sand filter, but the D.E. filter will clear a green pool about 50% faster than a sand filter.

5. If you follow these instructions and your pool does not clear up within 4 or 5 days, your filter may not be functioning properly. Read our blog on Pool Filters, The pool will never clear up if the filter is not working properly.

My Pool Was Opened OK But Still Has Cloudy Green Water

green_cloudy_algae

We suggest the following procedure:

1. Assuming all parameters, pH, chlorine etc. are OK. If not, adjust the chlorine, pH, and Alkalinity levels of the water using pH Plus (baking soda), pH Minus (muriatic acid) and (optional) Alkalinity adjustment (should be OK if the pH is normal). These levels must be within the proper ranges or the water may not clear completely.

2. Shock the pool. This means (super) chlorinating the water to kill off any bacteria and algae. Start off by adding 3 or 4 gallons, and if you see no results overnight, add 3 or 4 more gallons the next day. Continue this process until you notice the water changing color to cloudy white, light green or clear. YOU CANNOT OVER SHOCK A POOL ! The more you add, the quicker it will clear ! Note…shock is available in liquid or powdered form, but we recommend against using powdered shock (it works too slow and could compromise the efficacy of the free chlorine).

3. Add a high quality algaecide such as CLEAN & CLEAR MINERALS from C-Pool Minerals to the water at this point.

4. Run your filter 24 hours a day and backwash 2 times a day for quickest results. Run the backwash cycle for 60 – 90 seconds. The more you run your pool, and the more you backwash the filter, the faster the pool will clear up. If you have a D.E. filter, remember to add new D.E. to the skimmer closest to your filter after each backwashing. A D.E. filter is more work than a sand filter, but the D.E. filter will clear a green pool about 50% faster than a sand filter.

5. If you follow these instructions and your pool does not clear up within 4 or 5 days, your filter may not be functioning properly. The pool will never clear up if the filter is not working properly. Read our post about Pool Filters.

My Pool Was Clear To Start, All Parameters OK, Then Hot Humid Weather Came And The Water Turned Emerald Green

Green Pools Cloudy

We suggest the following procedure:

1. Adjust (if necessary) the pH and Alkalinity levels of the water using pH Plus (baking soda), pH Minus (muriatic acid) and (optional) Alkalinity adjustment (should be OK if the pH is normal). These levels must be within the proper ranges or the water may not clear completely.

2. Shock the pool. This means (super) chlorinating the water to kill off any bacteria and algae. Start off by adding 3 or 4 gallons, and if you see no results overnight, add 3 or 4 more gallons the next day. Continue this process until you notice the water changing color to cloudy white, light green or clear. YOU CANNOT OVER SHOCK A POOL ! The more you add, the quicker it will clear ! Note…shock is available in liquid or powdered form, but we recommend against using powdered shock (it works too slow and could compromise the efficacy of the free chlorine).

3. Add a high quality algaecide such as CLEAN & CLEAR MINERALS from C-Pool Minerals to the water immediately. If C-Pool is already in the water, double the weekly dosage and broadcast.

4. Run your filter 24 hours a day and backwash 2 times a day for quickest results. Run the backwash cycle for 60 – 90 seconds. The backwash should be a greenish cloudy color. The more you run your pool, and the more you backwash the filter, the faster the pool will clear up. If you have a D.E. filter, remember to add new D.E. to the skimmer closest to your filter after each backwashing. A D.E. filter is more work than a sand filter, but the D.E. filter will clear a green pool about 50% faster than a sand filter.

5. If you follow these instructions and your pool does not clear up within 1 or 2 days, your filter may not be functioning properly. Read our previous blog on Pool Filters. The pool will never clear up if the filter is not working properly.