trichlor in-line feeder

When I turn off the pump and open the lid the water drains, but when the lid is closed and the pump is on, it overflows and leaks regardless of the flow level inside the chlorinator. This is a new problem for me. Equipment is only 1 year old. I know first step is to check / replace the o-ring...

Dumb question from a newbie... I don't have any pucks in there since I'm using the TFP Liquid Chlorine method to good results so far. But I am planning to go on vacation for 2 weeks and planning to fill the chlorinator up with pucks while I'm gone to simplify for the house sitter. I don't...

I have a couple questions regarding the use of Trichlor tabs using an in-line chlorinator. The questions are listed below if folks would like to skip the background, sorry if the background is a little long but I think I over thinking this instead of keeping it simple but I would like to...