RO filter died :-(

[Buckeye Field Supply]

Nearly anything in the sample cup, including dust, will change the tds. Best option is to use a glass container right out of the dishwasher.

Russ

 

[Buckeye Field Supply]

Where can I get a dual in-line TDS meter for 25 clams?

We are a sponsor and Master Distributor for HM Digital meters

Russ

 

[Buckeye Field Supply]

The +-.04 was discussed in matt's hanna meter thread.
it was hard to find a testing meter that had less of a possible range without spending much more money. your talking lab bench equipment at that point.

given that, I'd rather see a 0.01 on the meter than a .14 - .17 at least I know it's at the low end and in the range I want to be in.

HM Digital's COM-100 would be a good bet to get the precision you're looking for at a reasonable price (and it is waterproof).

Russ