The instructions just say to install the feeder to the intake and outtake but I'm not sure where that is. Can you tell by looking at the pool equipment pictures?

http://youtu.be/0ewyOQ_TVVE

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"give the CL220 to someone you dislike" - hahahaha!

Ben - My pool is around 17,000 gallons. Initially I was thinking of getting floaters, but I travel a lot for work, and sometimes I am away for a month or longer. That is why I choose a automatic chlorine feeder.

How can I find out what the "pressure differential" is? What PSI is considered good or not?

How much does the "Rainbow 320 inline chlorinator" cost? How is it better than the Hayward CL220?