Pool chemicals are normal, we have a little bit of green algae starting to form. Pump is running 24/7. 17k gallon AGP salt water ... Any thoughts or suggestions on how to stop this algae from growing/becoming worse??? All help is appreciated
Vacation algae
- Thread starter swanny297
- Start date
This would greatly help us figure out what's going on.If algae is starting to form, that doesn't sound normal.
http://www.troublefreepool.com/pool-school/chlorine_cya_chart_shock
for CYA level of 70, chart recommends minimum FC of 5 so it sounds like your chlorine is low for the amount of CYA you have
for CYA level of 70, chart recommends minimum FC of 5 so it sounds like your chlorine is low for the amount of CYA you have
Would also suggest lowering pH to around 7.2 first and then beginning the Shock Process since you have visible signs of algae. Once you begin the Shock Process, do not test for pH until you have passed all criteria and your FC drops below 10 ppm. You will also need to add bleach to reach the FC target needed for shocking as the SWG is not designed to crank out shock-level FC.swanny297 said:
Thanks started shocking Sunday Am looking better just thankful it wasnt to bad going to vacuum and backwash tonight keeping FC around 24 any other levels I should be checking while in Shock mode? When it is clear do I allow the chlorine level to drop to the level on the CYA chart and than test all parameters again? I am thinking my FC dropped on vacation and maybe my guest wasn't measuring right.
swanny297 said:
Only check FC and CC while shocking. pH will be inaccurate, and nothing else will change.
As for maintenance, do not let your FC level drop until you pass all three criteria. See Pool School for a refresher.
Then, yes, test one more time, and use the chart.
I have passed 2 of the 3 my water is nice blue just not crystal clear is this because I have a sand filter? Is it safe to stop if I pass the overnight test again tomorrow if I am not perfectly clear or do I need to keep going? I just hate to keep adding bleach if the only reason it isn't clear is because of the sand filter I am maintaining FC levels though out the day as well.
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