I decided to switch from bacquacil to chlorine when opening my pool this spring. I assumed after 8 months the bacquacil was gone from pool....WRONG!! Now I'm pouring shock in by the gallon and the chlorine is still not registering on test strips, the pool is green and the pump needs to be backwashed every two hours as the pressure rises very quickly. This wouldnt be a problem if I didnt have to go to work all day. Is this nightmare normal? how long before pool is clear. Any suggestions?