We really need some numbers to be able to help. Can you get a drops-based kit and retest? (Preferably one that tests higher chorine than 5ppm.) You might also consider buying the kit that Ben sells at his www.poolsolutions.com website. It is the one that most of us use and is well worth the money. In the meantime however, try and pick up a different kit and repost with some numbers. Then somebody here will be glad to try and help you. Keep your pump running 24/7 for the time being while you are trying to clear the pool.