If that is all the information you are going to give, it makes it very hard to diagnose your problem. What if you told the auto mechanic "My car is not running right and I use Shell gas and I put some air in the tires."
Based on what you told me, green is usually copper either dissolved from keeping the pH too low or from putting a bromine tab in the skimmer or from a copper-based algaecide. It could be algae. It could also be high levels of DMH from the bromine tabs which are BCDMH 1-bromo-3-chloro-5,5-dimethyl hydantoin. And it could be high levels of bromide (used bromine) that have built up from not draining your water often enough. It could high TDS. It could be from two chemicals that are incompatible. It could be aluminum. It could be a clarifier and suntan oil.It could be nitrates or nitrites. It could be sulfates.
Test the water or have it tested at a pool store for pH, alkalinity, hardness, TDS, copper, iron, cyanuric acid, nitrates, sulfates, phosphates and total bromine. Then