The next step is pool math (at the top of the page)
Enter all of your pool data into the 'now' column of the table
In the yellow box at the bottom of the table select suggest goals from trouble free pool, primary chlorine source as bleach and pool surface as vinyl
If you scroll down a little more you can enter your pool dimensions to get and idea of your volume if you are unsure of that
Recheck your FC, it should be under 10 by now
If it is under 10 check your ph and enter that in the now section of poolmath
First step is to bring ph to 7.2.
So in the poolmath target area for ph change that to 7.2
It should then tell you how much muriatic acid you need to add to the pool
I add this by going to the side of the pool with the acid and a measuring cup
Being careful not to breath in the fumes I measure it out at the side of the pool
I then slowly pour the acid into the pool, near a return so it mixs quickly
I then rinse the acid cup in the pool
Everything then goes back to its storage area, away from the other pool chemicals
Wait half a hour with the pump running between adding chemicals
Then check the
Chlorine/CYA Chart.
It shows you need a SLAm level of 20FC for CYA of 50
Put a target of 20 in the FC target level in pool math
Check the % listed in poolmath is correct
It will tell you how much bleach / chlorine you need to add
Slowly pour that amount of FC into the pool at a return
Start by measuring every couple of hours and top the FC level back up to the slam level
As the algae gets killed off the testing can be spread out more
Brush the whole pool at least daily
Check the pressure on your filter. When it rises 25% above your clean pressure clean your filter
Read and reread these instruction on how to
SLAM until they make sense and you have all the steps down
Test and dose your pool with chlorine as often as possible to make the process as fast as possible