IWS AutoDrain System — Pro Pipe / Standard Trays Bulky Application window: First 1-2 weeks

Application window: First 1-2 weeks of flowering phase

Digital dimming and boost mode

Mono-silicic acid formula — the most plant-available form of silica

you're gambling with your eyesight

IWS AutoDrain System — Pro Pipe / Standard Trays Bulky Application window: First 1-2 weeksIWS AutoDrain System Pro Pipe Automatic Run to Waste Drainage for Hand Watering Growers Best for: Growers scaling up from hand watering who want automatic drainage without the cost of full drip automation Our thoughts This is the smart middle ground between hobbyist hand watering and full commercial automation. The Pro Pipe version handles larger setups cleanly, and because it's modular, you're not locked into a bundled drip system you might not need.