Green Water help please after brushing algae patch bottom

[rogcov]

Hi All

Took the cover off my 15 foot pool today to find the water very clear, but on the bottom of the liner in the centre was a patch of green algea growing about 6 square feet in size , so i checked the water chemicals to find chlorine was fine and the ph was a little high (pool had not been used for about 3 weeks) but i had checked the chemicals every 4 days filters had been run for 10 hours each day. i tried to use my super vac but this did not seem to work as the green stuff just seemed to blow out through the bag so i brushed the bottom of the pool but now the water is all a light green colour but it did remove the algae from the liner, i have shocked the pool with my regular chlorine granuals now at about 11.0 ppm . question... should i now use a Algaecide and how long will the green water last pool only has a skimmer that came with the splasher pool which is now running constant.

Many thanks for any help

Rog :) :)

[maddie]

Hi Rog

The chlorine is unable to work in your pool if the pH is too high.

Reduce the pH and shock the pool with shock chlorine granules dissolved in a bucket of warm water (if its still green). Once this is done check the pH again and add stabilised chlorine when necessary.

Keep the filtration going constantly until the pool is cleared. At this time of year a minimum of 10/12 hours per day filtration is necessary at all times.

To clear the dead algae fit the waste tube to the supa vac and get rid of the waste over the side of the pool. Dead algae is very fine and will go through the bag and resettle so each time the water is disturbed it will become cloudy again. If you are struggling to get the water clear you can use a clarifier which will combine the tiny particles and make them easier to filter out.

The use of an algicide will certainly help to control the problem.

Lastly, do not be tempted to use the pool whilst trying to clear it, as this will not help!!!!

Good luck.

Maddie