Many people end up having minor problems with the Liquidator over the long run and you can have serious problems when running with a variable speed pump run on low speed all the time. They tend to clog up and require cleaning, annoying though hardly fatal. Variable speed pumps run on low speeds are a more serious issue, as it is between difficult and impossible to get them to feed enough chlorine in that situation. Various approaches have worked to adapt to two speed pumps run on low, but variable speed pumps on their lower speeds can often pose insurmountable issues. If a variable speed pump on low is not an issue and you don't mind cleaning regularly, the Liquidator can be a wonderful low cost approach.
A Stenner setup costs noticeably more, but seems to work more universally with fewer problems, and they aren't really all that expensive. They do require some minor annual maintenance, clean the tank once a year and replace the feed tube and other tubing as needed, but that doesn't seem to bother anyone. You get the most flexibility if you pair a Stenner with either an aux relay on an automation system or it's own timer, so you have lots of control over the chlorine feed duration.
