A 600 gallon pool is more like a spa, than a pool. The reason is the small number of gallons compared to the (relatively) large number of people.
This post will get you started: http://www.poolforum.com/pf2/showthread.php?17055
But, with only 600 gallons you need to plan on draining and refilling maybe once every 2 weeks, or perhaps, after very 10 - 12 uses.
Bookmarks