I've given up on fixing my RO/DI unit and am going to order a new one asap. Will using just the top 3 canister still filter my tap water enough to make it safe while I wait for a new unit? Here is a link to the unit I bought.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=20684&item=2359498573
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=20684&item=2359498573