Help. I'm drowning with a problem with my tiny 1 meter deep pool for my kids. After some pump issues and a replacement pump being fitted, a week of working to get the water sparkling again and the green cloudiness out, I've a beautiful looking pool. My problem is that when I do the simple chlorine test by adding the 5 drops, it turns very yellow and then red. Blood red!! I am using the chlorine test drops correctly and not the ph test drops. Any ideas???