I have a 26000 gallon inground vinyl liner pool that I opened last weekend. I essentally did the same things that I have done for the past couple of years which is to check the ph, shock using a powdered chlorine shock vacuumed etc.
After a couple of days, the water still looked a little green. It was clear, but the pool looked green instead of blue.
I took a water sample to my local pool store, and the results were all good except the FC. They told me I was good to go and that I just needed to shock it.
Over the past week, I've probably added 10 pounds of powder shock and I still had no FC reading and the green tint did not go away.
After some searching on google, I came accross this GREAT forum and read up on using bleach to raise the chlorine level. I used the Pool Calculator and it told me to add 6 182oz bottles of bottles of bleach. I did this and waited a few hours an checked the levels. My FC is now around 2.
Right now these are the levels that I can test...
FC = 2
TH = 100
PH = 7.4
TA = 180
CA = 40
My questions are...
How long should it take for the bleach to affect the FC level?
Am I on the right track with the green tint?
I would like to thank everyone on this forum that provide such a wealth of information!!!