Okay, I'll be the first to admit that I am a complete newbie.... but it seems to me that the whole spa chemical/sanitizer thing is a bit heavy on the "let's kill off everything that could possibly live in this water". I would love to simply be able to test the water for bacteria (and viruses, and all those nasty things that we're trying to kill), and based on the test reading, sanitize/treat for the actual level of contamination.
is there a reliable, fast, easy to use bacteria/nasty stuff test out there? I've seen the Watersafe Rapid Bacteria Pool Test Strips - they're expensive at 10 for $20, but if they work, I'd happily give them a try. i can't imagine a better way to lower your chemical use and cost than to only use what you actually need!
Anybody have feedback about bacteria tests? thanks everyone for your wisdom and experience on this forum!