Hi,
First off, thank you all for such a great resource and helpful community. This site has made my hot tubbing experience much easier than I anticipated so far! I'm using Waterbear's step by step guide for running bromine in a hot tub, and have my chemistry in a good place. I think I understand the basics, however I haven't found any particularly satisfying answers on how to test my water, and how to add my chemicals to my spa. I'm hoping you can help!
I find that I waste a lot of test tablets because of the fluctuations in my readings; I keep retesting until I'm comfortable with the accuracy of the readings. Now, I understand that they will fluctuate due to certain variables, such as the addition of chemicals. However, I have no idea what chemicals have this effect, and how long to wait after adding chemicals, when to test etc.. etc..
So, I'm curious if there are certain guidelines I should consider when testing and adding chemicals. What to add, in what order, and how long to wait before testing, and so on. In case its important: I have a 500 gal tub with CD Ozone, 3-step bromine system, bleach as my shock/oxidizer, using a LaMotte ColorQ Pro7 test tablet kit.
Thanks in advance,
Kalev