I am completely new to owning a pool. We just installed a 27' above ground pool in our weekend house for our grandchildren. Since this is only used on the weekends (till we retire) I would like to know if I can maintain the pool using liquid chlorine added weekly, rather than using the inline chlorinator. We come up on the weekends and the chlorine level is zero. We shock it with liquid chlorine and have added the pucks, but after reading some threads I am concerned I may be adding other undesirable ingredients that are in the pucks. Is it even possible to maintain the water with only liquid chlorine and checking weekly? I'm thinking I may need to leave the chlorine level high on Sunday's, so there is residual chlorine in the pool until Friday. Any advise is greatly appreciated.