I have a DWC 4 bucket system with 5 gallon buckets and a 10 gallon reservoir. It has 2 -2 feet hoses and 2 -4 foot hoses running from the reservoir to the buckets very close to the bottom of the reservoir and buckets. Not sure the diameter of the hoses but they are decent size. It also has hoses running from my reservoir pump to the tops of the buckets . They are much smaller in diameter then the bottom ones . Which connect together to the buckets to feed the plants i guess ? My problem is I'm having trouble keeping my buckets level. For instance I had one bucket in the back overflowing through the top of the mesh pot and the bucket in front of it was only about half way full . For some reason the buckets in the back seem to stay at a higher water level than the front ones closest to the reservoir. Any ideas on what I'm doing wrong?