I have a trip coming up so I have been preparing. I went with simple float valves in six reservoirs. Had to make a little spacer clamp since they are flexitanks. I moved the sprinkler timer valve close to the spigot so there is only water in the building for two hours each night. It should keep the tanks topped off. I am trying foliage pro and fulvic acid at 5mls each per gallon fed every couple hours. I am keeping veg very light just taking care of moms and a few clones. It’s two rooms flowering mostly the brothers grim Durban poison x cindy99 and about 9 sour diesels. There are ball valves that allow any rez or combo to be filled with nutes or plain water. It will either work or it won’t.