you can tell you put in the time to plan it out ,what is your drain I used 3/4 inch pvc pipe and the green saucers ,but one drain for all the plants sounds cleaner and easier , I also would like to ask how bad is your electric, when I have the bloom,auto,and veg room going alone with the seedling clone area going mine is about 700 a month ,I only have all of that running in Feb through april ,then I start putting them outside in green house during the day ,Now I run the seed clone area long enough to get them to put in forever homes,then I veg and bloom in bloom room to keep cost down