My tank is 175 gals, I know it is small but this is a tester so we can see if we will be able to make it work. The water flow is as follows: From the IBC to the smaller swill filter buckets located on both sides Then to a direct line to the grow beds. the bell siphons then drain to the sump tank where our pump then send the water back to the Tank. Soon all this will be in a greenhouse. We did utilize the natural slope of our yard to help with our system.