Vivosun FlexFeed 4 Gallon DWC Hydroponic Kit | 2 & 4 Bucket
Soil-grown plants spend energy searching for water and nutrients. DIY bucket setups leave you guessing about reservoir levels and hauling buckets to drain them. The Vivosun FlexFeed 4-Gallon DWC Hydroponic System suspends roots in an oxygenated nutrient solution and monitors the reservoir for you. For those needing more volume, the
Vivosun 5 Gal DWC Hydroponic System is a great single-site alternative. Vivosun rates the system at 30–50% faster growth than soil and up to 25% higher yields.
Each FlexFeed bucket is molded from durable polypropylene and holds 4 gallons (15 L) of nutrient solution, with fill-level markings inside. A built-in air pump drives two 2.4" air stones per bucket, keeping dissolved oxygen high to help prevent root rot. A gridded maintenance window opens to add water or test pH and EC without lifting the lid. When it's time for the weekly solution change, the built-in water pump drains the reservoir through a 39" drain pipe at the press of a button.
Both the 2-bucket and 4-bucket kits include the FlexFeed DWC controller. For larger 5-gallon site options, consider the
2-bucket or
4-bucket DWC kits. The controller connects up to four buckets through 3.5 mm AUX jacks and links to the Vivosun App over 2.4 GHz Wi-Fi. Water level and temperature sensors in every bucket send real-time readings and low-water alerts, so you can top off or adjust before plants are stressed. Each kit also includes seedling baskets and Rapid Rooters, so you can start seeds directly in the system.
