Too true... I have two pool stores locally and usually go to L's for testing and random stuff but ended up at the other store for a water test. They had some machine and computer that the samples were put into after being injected with reagents. The whole thing looked pretty impressive... until I noticed the kid doing my water workup was fumbling around and looked clueless. Their test results showed a pH of 6.6, TC of .3, TA and CH off the charts and an almost lethal level of copper. The kid started drawing up recommendations when I asked if we could test again. Manager came over and helped this time... all values turned out fine.