Hi Jennie;

A comparative study was done on a variety of kits a few years back, and the bottom line was, pool testers (all methods) are not very accurate. I've been trying to get a copy of the actual study. I'll try again. Either way, I'll follow up on this shortly. I do have a news report of that test.

However, if you are still connected with the UCLA school of EH, can you possibly get a "test the testers" project going?

Anyhow, back soon.

Ben / PoolDoc