Quote Originally Posted by Watermom View Post
it is the fact that it can give us a CYA level to work with that is the main reason we ask people to buy it.
I would say there are 4 reasons:

1. Unlike the K2006, the HTH 6-way is available IMMEDIATELY (if it's available at all). This allows users to get started solving things immediately.

2. As WM said, it contains a fairly accurate CYA test. CYA values are (a) critical and (b) almost always BADLY measured by strips.

3. It contains an OTO kit, which allows rough estimates of chlorine levels above 10 ppm. This contrasts with DPD color match tests (max 5 ppm) or strips (max 10 ppm). If someone has algae, this is REALLY important since, as WM noted, we want to avoid bleaching liners if possible, but we have to get to FC = 20% of CYA or higher to kill algae!

4. When users don't have complicated problems, the HTH 6-way may be sufficient . . . and it's about 1/3 the cost of a K2006.