I recently got and have been using my TF100 kit and its great! But while in the process of shocking/testing I've used up all my R-870 powder. I'm using one heaping scoop everytime I test while shocking/testing. No problems at all with the kit but is there something I can buy locally while I place/wait on my order from tftestkits.net? Also, when I'm done with shocking and am able to hold FC overnight, I guess I should be using the ph/OTO kit daily, but how can I read up to a 7 at my current 60 CYA level, can I dilute the sample?