Yeah, they're in a sort of broken english translation from German, so it's not like reading American written instructions... I spoke with a tech from American Marine Inc, and he agrees, measure the effluent with the controller.
I can only imagine that Bob Fenner didn't really understand my question, but I emailed WWM the same question and he said to measure the tank. He must be thinking it was only a pH probe, not a controller combo...
Can anyone make any sense of this? I don't want to respond to him again and upset/sound like a total idiot (This is his second response)
Thank You Bob, I got a response from American Marine Inc, and they stressed
that sense this is an alkalinity reactor (in reality...)
that it was more
important to monitor the pH inside the Knop S IV reactor as, "too low would
turn the koralith to pudding,
<... no... not possible. The KH of this source of calcium carbonate and carbonic acid...>
and too high a pH would do nothing". I have
elected to go with an aquamedic kalkreactor with an auto top off and doser
pump for the night time. And got a second pH monitor only (not a controller
this time) and salifert Calcium and KH tests to keep track of things inside
the tank (along with the Knop effluent). Trying to do things right this
<Real good. Bob Fenner>