On Saturday my cholorine level was a little low and Sunday I got no cholorine reading at all. I shocked my pool several times and poured some liquid shock in as well. I still am not getting any cholorine reading and now the pool is so cloudy that I can not even see the bottom. I do not have an automatic cholorinator, I have an device that I put pucks in and it is dispenses cholorine like that Please help me to get my pool back, what is wrong thanks