IWS Dripper Pro - Large Consistent, precise feeding Maximum control, wide stands for pots up to 45 litres. An introduction The IWS Dripper System is the ultimate growing system if you're wanting to fine tune every element of the grow. From the amount of nutrient each plant receives to monitoring the pH and EC of run-off, IWS Dripper is for growers who want to be hands-on but automate feeding. It uses 4 litre-per-hour pressure-compensated drippers or the blue flood drippers for controllable, finely tuned feeding to the plant's root zone. How does it work? Nutrient is pumped from the FlexiTank down the dripper pipe to manifolds where the dripper lines are connected, then runs directly to each plant's root zone. The 25mm dripper pipe is reduced to 3.2mm drippers where it pressurises, giving equal amounts of nutrient solution to each plant. Dripper is compatible with any pot type, placed on top of the stands which gather run-off; the Control Unit collects and holds the run-off until it reaches the bottom float, then pumps it to waste. About this system This is the Pro-tier Dripper kit fitted with Large Stands, sized for pots up to 45 litres. If you need a larger volume of run-off pumped, or you're using over 24 pots, Pro is the ideal Dripper tier: 25mm fittings give faster draining than the Standard tier. Kits are available from 4 to 48 pots. Why choose this one? Ensures even distribution of nutrient solution Ability to monitor nutrient and run-off Prevents water logging of the root zone Recommended for grows over 24 pots Faster draining than the Dripper Standard Large Stands, sized for pots up to 45 litres All kits contain: Control Unit – 3000L 25mm Fittings & Pipe Large Stands — fit the IWS 16L or 25L Cloth Pots (sold separately) Dripper Line & Manifold, Filter, FlexiTank, Flood Drippers, Pressure Drippers Growing in pots up to 20 litres instead? See Dripper Pro - Small. Running 24 pots or fewer? The Dripper Standard - Large covers the same stand size at a lower cost.