Use 20 mule team Borax to raise your pH, it's cheaper and is the same as what they sold you. We can help you clear up the water, but we need to know the CYA level in order to know to what level you need to shock. You can use plain, unscented bleach to clear up the pool, but we need the CYA level first.

If possible, it's better to add the chlorine after the sun is off the pool to keep the sun from consuming any of it, leaving the most possible to work on your water. HOwever, when trying to clear up a green pool, you're going to have to raise your Chlorine to shock level and keep it there by testing and adding more 2-3 times (or as often as you can) daily.

Janet