I have the HTH 5-way (appears to be the same as the 6-way) with new reagents minus the CYA since I couldn't find it locally. What would the benefits be of upgrading to the K2006 aside from being able to accurately test higher chlorine numbers (so I can "sell" it to him)? Part of the reason DH is reluctant to spend so much on *another* test kit is that it costs twice as much as refilling our pool in the first place (When I fill the pool, the water bill only goes up about $28 for the month).

Thanks again!