No chlorine

[bluke]

is it possible for too much antifreeze left in water lines to effect saitizers' ability to sanitize? i can't get any chlorine reading. pool emptied and filled with fresh water. shock gone in hours. any ideas?

[Me...]

People will need pool gallonage and others test levels to make a guess. Inability to maintain a chlorine level is most likely from excess organic load or high combined chlorine. Or you are trying to keep to low a level in a nice bright sunny pool with no stabilizer. Or maybe a Salt Pool with a low salt level.