D.I.E.D.,

Thank you for the explanation. I received a catalogue yesterday and was looking at a Hanna Combo.. "the only tester that measures ph, conductivity, TDS and temperature."

I wasn't sure of it's value in Pondmeistering.

I have a YSI 550 D.O./Temp meter that I very rarely use so I probably don't need to spend $145
on another tool that probably wouldn't get used enough to justify it's cost.

Thanks again.

Dan

Mistakes are proof that you are trying.


Dan