What is the Wilma system and how does it work?
The Wilma system is a recirculating drip-feed setup where a pump delivers nutrient solution to each pot on a timer. Runoff drains into the tray and returns to the reservoir. It’s hydro-style but works with various media like coco, clay pebbles, or soil.
What’s included with the Wilma XL4 system?
The XL4 includes a 90x90cm tray, four 18L pots, a 70L reservoir, submersible pump (usually a Maxi-Jet 1000), dripper lines, and fittings. You’ll need to supply your own timer, grow media, and nutrients.
What grow media can I use with the Wilma system?
Coco coir and clay pebbles are the most recommended. Coco holds more water, while clay pebbles drain faster and offer high oxygen. Soil can be used with careful feeding, but it's less ideal for recirculating setups.
What feeding schedule should I use with the Wilma system?
Start with short, infrequent feeds for young plants and increase frequency as they mature. Feed mostly during lights-on. Use clean hydro nutrients to prevent clogs. Organic nutrients work but need more maintenance.
Do I need to check pH and EC in the Wilma system?
Yes—especially with hydro media like coco. pH affects nutrient uptake, and EC tracks solution strength. Change the reservoir weekly and monitor temperature to avoid root issues. Hard tap water may need filtering.
How easy is the Wilma system to set up?
Setup is straightforward: place the tray, connect the pump and drippers, and test with water before adding nutrients. The system should sit level and isn’t meant to be moved when full due to weight.
How do I prevent or fix clogged drippers?
Use clean nutrients, avoid thick organics, and check lines regularly. If one dripper is slow, check for kinks or debris. Additives like Ata-Clean can help prevent blockages in recirculating systems.
Do I need to clean the Wilma system often?
Weekly checks are smart, and a full clean between grows is essential. Flush with plain water occasionally to prevent salt buildup, especially in coco. Reservoir hygiene helps keep everything running smoothly.
Can roots clog the Wilma system drains?
Yes—especially with larger plants. Prevent clogs by raising pots slightly, reducing light exposure near drains, and checking regularly. Trim roots only if absolutely necessary.
Does the Wilma system need an air stone?
It’s optional. The drip system already pulls oxygen into the root zone, especially with airy media. Still, some growers add an air stone to keep the reservoir fresher and more oxygen-rich.
What plants can I grow with the Wilma system?
The Wilma system works well for big plants, long veg cycles, and mother plants. It fits perfectly in a 90x90cm tent and suits both hobby and more advanced indoor growers.
Can I leave the Wilma system running unattended?
Yes—once dialed in, it can run for a few days unattended. Make sure the reservoir is full, drippers are flowing, and timers are working. Having a spare pump is smart just in case.
Is the Wilma system safe and stable?
Use protected power and never work in the reservoir with the pump plugged in. The full system is heavy (70L+), so ensure your bench or floor is level and strong enough to support it.
Can I pick up the Wilma system from Dr Greenthumbs?
Yes—pickup is strongly recommended due to its bulky size. Bellambi store usually has stock ready within 24 hours. Some customers report fast delivery when shipping is available.
What else do I need to buy with the Wilma system?
You’ll need grow media, nutrients, a timer, and pH/EC meters. A punch tool for clean drip line connections and spare drippers can also be handy. Most parts are modular and replaceable if needed.
