We opened up our mesh-covered pool yesterday. The water is so green that you can't see the bottom. I have a feeling that there is a lot of leaf debris on the bottom since our pool is surrounded by trees but I was afraid to vacuum since I couldn't see what I was doing. I was getting ready to start a SLAM but could use some advice before I start. Here are our test results, taken 3 hours after opening:
FC - 1
CC - 0 (how is this possible since the water is green?)
PH - 7.8
TA - 80
CH - 100
CYA - appears to be 0
I was surprised that CC and CYA were both at 0 so I took a sample to a local pool store that uses a Clear Care Expert Water Analysis System to get a second opinion. They also said that CC was 0, but they claim that the CYA is 22. Reagents haven't expired but I find the CYA test hard to interpret. It was 60 at closing so I have a hard time believing that it is 0 now. Should I proceed using the shock level for 30 (which is 12) and add some CYA in a sock in the skimmer beforehand to get CYA to 30? Or should I proceed using the shock level for 20 (which is 10) and add a tiny bit of CYA to a sock in the skimmer to get it to 30, and then increase the dose to 12 afterwards? Since I wasn't able to find enough liquid chlorine to do the entire SLAM, could I start off the SLAM with Dichlor so it will increase CYA and decrease PH at the same time so I wouldn't have to add muriatic acid and granular stabilizer to the pool? And when I run out of liquid chlorine, should I switch over to Cal-Hypo, and can I broadcast it instead of adding it to a heavy bucket of water and pouring it around the pool?
FC - 1
CC - 0 (how is this possible since the water is green?)
PH - 7.8
TA - 80
CH - 100
CYA - appears to be 0
I was surprised that CC and CYA were both at 0 so I took a sample to a local pool store that uses a Clear Care Expert Water Analysis System to get a second opinion. They also said that CC was 0, but they claim that the CYA is 22. Reagents haven't expired but I find the CYA test hard to interpret. It was 60 at closing so I have a hard time believing that it is 0 now. Should I proceed using the shock level for 30 (which is 12) and add some CYA in a sock in the skimmer beforehand to get CYA to 30? Or should I proceed using the shock level for 20 (which is 10) and add a tiny bit of CYA to a sock in the skimmer to get it to 30, and then increase the dose to 12 afterwards? Since I wasn't able to find enough liquid chlorine to do the entire SLAM, could I start off the SLAM with Dichlor so it will increase CYA and decrease PH at the same time so I wouldn't have to add muriatic acid and granular stabilizer to the pool? And when I run out of liquid chlorine, should I switch over to Cal-Hypo, and can I broadcast it instead of adding it to a heavy bucket of water and pouring it around the pool?
