I have been reading other posts and note that trichlor has cya. My pool store recently recommend I go with liquid shock as it has no cya.. However continue to go with the pucks that have cya? Seems like a never ending cycle. How does one maintain daily chlorine in between shocks with liquid? Use more liquid chlorine to maintain daily chlorine levels? How do I know how much to add and how often? I am presuming my inline chlorinator for tabs should just be shut off? Very confused here any advice is appreciated .