Pumps for Vertical Farming
Most pumps are designed for recirculating systems which optimize for volume and not lift, or head. With vertical grow towers, the opposite is required, you need lower volume and high head, or lift. You need typically at least 3 ft more than the top of the towers. Depending upon the location of your sump tank or reservoir you may even need more.
In order to achieve the required lift, using commonly available circulation pumps, you may need to buy a larger pump than you otherwise would need. The pump is usually more expensive and uses more electricity to do the same work. Our pumps are low volume, high head pumps using a relatively small amount of electricity. They can all be powered directly by solar panels.
The number in the "# of towers" column assumes a 6 ft tower.