Could someone clarify the shocking process. I have never done this, but think I may have some yellow algae? Sorry for the lengthy post but I want to be sure I do this right:
I have a yellow substance that collects along the creases where the side walls and or the slopes meet the bottom. The stuff will brush away but comes back in 2-4 days. How do I know if this is algae? My water was getting a tiny bit dull but it looks good today. If algae is present, will the water be cloudy?
When I brush the pool, there is always a cloud of grayish debris. Lately I have been experimenting with brushing when the pump is on high (hoping the drains will suck the stuff in and filter it out). I did it yesterday and then again this morning; it, the gray stuff, seems to just collect on the bottom. Is this stuff just too small to filter?
Water is pretty clear
Ph is 7.8
TA is 80
CH is 230
CYA is 70, FC is 4 , cc is 0 ( I have just recently increased the chlorinator % to 60% to try to
get FC up a bit as it seems the FC was at 2 or 3 )
Pump runs on high speed from 12pm to 3:30PM, and again from 1AM to 4AM and low speed
the rest of the time . (When the kids are in the pool, the pump is always on high speed as the
slides requires it?
Is this an accurate understanding of how to fight algae:
Keep CYA near but not above 80
Keep FC at a min of 7.5% of my CYA (5.25 in my case)
Clean around lights etc with small brush
To get rid of algae:
Is it possible that the grey dust I that comes up when I brush is actually the yellow algae after it
dies? Is it possible that I can kill the algae (assuming the yellow stuff is algae) just by raising my
FC to 5 or 6?
Super Chlorinate at a rate that is 60% of my CYA ( 10 -20 gallons in my case depending on if I do
min or max, which is best?) I am confused about how to add the chlorine for shock. All at once?
Pool School under defeating algae says to shock according to the shocking section of pool school
But the shocking section says to do it in cycles (please define cycles ) and I think is assuming I am
trying to get CC to 0, not get rid of algae????
Does “cycles” mean that I should divide the 20 gallons in to 2 gallons at a time or something,
and if I am trying to defeat algae, (not get CC to 0) how do I know when the algae is dead? Will
it change from yellow to grey during or after one of the “cycles”?
Should I Put all pool related items in the pool while super chlorinating including toys, robot
cleaner, brushes, swimwear, pool water test bottle(s) etc.
Will this huge amount of Chlorine wreck my liner?
How long will it take for the huge amount of chlorine to reduce to safe levels to swim in and
what is the max safe level to swim in?