PS234 kit and tip problem

I've found a work-around solution to the tip problem, which causes undersized drops with the CHL#2 and SALT#2 reagents.

Wipe the tips with a damp paper towel before EACH use!

99+% of the time, this will allow you to get full size drops. I'm still pursuing a definitive answer about the cause, but I've ruled out (after trying 5 different types of tips) defective tips as the cause.

OTOH, there have been some tips that squirt, even when squeezed gently, rather than producing drops. And THAT is caused by defective tips.

More soon.

Ben