So I went to MX for a week and put the system on auto pilot, came back and everything was perfect. I did upgrade to a 32gal reservoir right before I left, and I'm glad I did. The girls were going into week 7 of flower, and apparently they were thirsty because they drank about 25 gallons over 7 days! I was a little nervous because the float valve stuck one time before a few weeks ago and the rez was not topping off the system, but there were no problems and everything worked great. Going to change the water out tonight and start a 1 week flush. Frost factor is unreal, smells crazy sour dank.