I just had an above ground 21 foot round pool installed. Does anyone have the Hayward power-flo matrix pump and xtreme filter? The instructions say to turn the filter knob counter clockwise before turning on the pump then clockwise after pump is on and water is flowing. Are you able to run it on a timer? If so can you recommend a timer? Also, my chlorine tablets say to put in floating chlorinator or directly into skimmer but on the skimmer it says not to add chemicals in to skimmer only into pool. Can I put the tablets directly into pool? Or do I need a floating chlorinattor? Thanks you can tell I'm new at this.