No, you shouldn't add 12 pounds of dichlor all at once. You should use it as needed to get your chlorine level up to your current goal based on your daily chlorine level testing.
If you want to use the CYA instead of getting dichlor and save another trip to the store, you can put it in a sock and hang the sock in front of a return. That way you will be free to backwash/clean as needed.
Either CYA or dichlor, not both.
If you want to use the CYA instead of getting dichlor and save another trip to the store, you can put it in a sock and hang the sock in front of a return. That way you will be free to backwash/clean as needed.
Either CYA or dichlor, not both.