Choosing a VIVOSUN Irrigation System
The right
VIVOSUN irrigation setup comes down to pot count and reservoir capacity. The FlexFeed pump and reservoir tank are sold separately so you can size each independently. Match total reservoir gallons to the volume you want to deliver between fills; match pump tubing layout to your pot count.
Irrigation Sizing
How FlexFeed Cycles
FlexFeed is a programmable pump that fires on a set schedule, delivering a fixed volume of water through the connected dripper tubing on each cycle. The cycle schedule is set on the pump face: number of cycles per day and seconds-per-cycle duration. A typical 4x4 tent with four 5-gallon pots runs 4 cycles per day at 30 seconds each, delivering roughly 0.5 gallons per pot per day. The 4W brushless motor draws minimal power and runs quietly enough to leave in a residential grow space.
For broader irrigation automation context, see the
TrolMaster Aqua-X irrigation guide which covers sensor-driven irrigation patterns.
Related Guides
Pair FlexFeed with a
VIVOSUN GrowHub controller for scheduling coordination across lighting and ventilation. For cross-brand pump and reservoir options, browse
irrigation systems.
Frequently Asked Questions
How many plants can FlexFeed water?
Up to 10 pots from a single FlexFeed pump and dripper tubing kit. The pump delivers a fixed water volume per cycle, distributed evenly across the connected drippers. For more than 10 pots, run a second FlexFeed in parallel from the same reservoir.
Does the FlexFeed work with GrowHub?
Not directly through the UIS connector. FlexFeed runs on its own onboard schedule programmed at the pump face. To coordinate FlexFeed with GrowHub-managed lights and fans, plug the FlexFeed power adapter into a GrowHub output port and use the GrowHub schedule to enable/disable the pump's daily cycle window.
Is the rain barrel food-grade?
Yes, the PVC liner on the VIVOSUN collapsible rain barrel is food-grade and BPA-free. It's safe for water that will contact food crops or be consumed by plants intended for human use. The outer fabric is UV-stabilized for outdoor storage.
Can I run FlexFeed off a 5-gallon bucket?
Yes, the FlexFeed submersible pump fits in any reservoir 5 gallons or larger with at least 4 inches of water depth. The 5-gallon bucket is the typical starter setup for a 2x2 or 3x3 tent. Step up to the 53-gallon collapsible barrel when refill frequency becomes inconvenient.
How often does FlexFeed cycle?
Programmable from 1 to 12 cycles per day, with cycle duration between 5 and 60 seconds. Typical 4x4 setup runs 3-4 cycles per day at 30 seconds each, which is roughly 0.5 gallons per pot daily. Adjust based on pot size, substrate, and stage; flowering plants need 30-50 percent more water than veg.
Does the reservoir fold flat for storage?
Yes, all VIVOSUN collapsible rain barrels fold to roughly 4 inches tall when empty. The frame ring stows separately. The full setup packs into a tote bag for off-season storage, which is why these reservoirs work well in space-constrained residential setups where a rigid tank wouldn't fit during the off-cycle.
