Need fellow drippers input … 50 of 10 gal buckets

What size reservoir do you guys think I will need for each room of 50 of 10 gallon buckets ?

Mine, I seem to go through about the bucket volume per plant per week. 500 gallons?

Thanks i was thinking 400 gallons …

Nice start on set up.
I’m build same basic system but much smaller in scale.
One question I have is how do you get drainage back into rez since containers are on ground ?
Unless rez is under the floor what prevents pudding in drainage and gets water back into rez?