I disagree, I find test strips much more reliable than chemicals that are damaged by heat, decay over time, dehydrate and don't work well in vials that other tests have been used in.
The only variation I've seen in my test strips is due to salt concentration in the tank and atmospheric effects like free gaseous ammonia altering the read time on the nitrite and nitrate tests.
If you dip and drop the test into a vial that has salt in the bottom its MORE accurate than a test where barometric pressure changes the readings.
BUT, strips are more expensive. I only use them when I need to know twenty seconds ago.
Last edited by Thunderloon; 02-23-2011 at 01:52 AM.
Reason: Arguing the point with me would be like voting for James Dean for Surgeon General.