you have 3 things to look at
1 size of feeder hose
2 head heigth of the buckets
3 total time your feeding them
I used a 80 gallon tank , 3/4 in incomming feeder and "T" to each bucket. "T" provide 2 ways for the water to flow. When the water is on its pushing up to the bucket. But when off its going down ,,,the fastest way. This helps the roots to go that way. With a "T" you should always have a flow. Every so often you will have a root system clog your system Thats easy pull the bucket up and clean out the flow.
I would go with a 750 gph MEGNatic pump ,,,,, not a direct drivel
1 direct drive get a seal leak and you have mineral oil in you feed system.
Mag pumps are totaly enclosed,,,,, believe me its well worth the extra buck.
Also with that big of a need for supply tank you need a pump to mix up the solution.
Note I used a float switch inline with the pump and timer. Pump pumps till the feed bucket is full and then stops reguardless of time.
To bad overgrow is down had all the diagrams over there.
oldsanclem Reviewed by oldsanclem on . Multi Flow Buckets What is the best pump to use for a 30 site multiflow bucket system? Rating: 5