After you connect pump to manifold with 1/2 hose, with an adapter. Then you connect other end of submersible pump to hose.
drop it into your control tank. The individual ports can be adjusted for flow rate.
Connect the raindrip manifold to my pump with 1/2" tubing, pump to 1/2" hose.
then, use the raindrip manifold to feed the plant buckets with 1/4" hose.
im planning to use 2 1/4" hoses to each bucket.
1 for a drip ring, the other to flush water to bucket to keep water moving and heavily oxygenated.
What I'm planning is similar. 5 gallon buckets with 1" tubing, with inline shutoffs, connected to my control bucket.
these are my return lines. To feed the plant buckets, I plan to do the following.....
Yeah, I bet your volume of gph into bucket is higher than can exit.
even though hoses are same size. The pumps force is being restricted
by the gap of bucket.