Per the CYA/Chlorine chart...I should be roughly 6 PPM FC given my CYA of 50. Is there any downside to targeting a higher number - say 8 or 9? At times I'm just not able to test my water each and every day. I was thinking that the higher target would give me a little leeway if the Chlorine level does drop down significantly on a day I'm not able to test the water.
Also, any ill effects on a vinyl pool liner keeping my Chlorine level at 8/9 all Summer long? I'm most concerned with the potential of "bleaching" all the colored graphics on the liner.