For growers that want massive yields, but prefer to take life a little easier. The Green Man Flood & Drain System is the answer to all your prayers. It's our best selling version of the Green Man System and the reason why? It's just so easy to get high quality crops.

The Green Man Flood & Drain System has a massive capacity for your roots to develop, a total of 30L. Which as we all know, a: 

larger root ball = a bigger plant

and a: 

bigger plant = huge yields​

it's as simple as that, giving your plants the space and environment to thrive and fill, encourages them grow to fill that space and with an optimised environment for the root zone, your plants will flourish and give you high-quality crops, lots of them.

Connected upto a brain controller unit and nutrient reservoir tank, it becomes a fully automated feeding machine that's unstoppable. Giving your plants exactly what they need, when they need it.

Choosing the right size system for your grow room is easy with the Green Man System. We say as a base guideline that 1 pot per 1m.sq. to give your plants plenty of room to grow. So If you've got a 1m x 1m grow tent, put 1 pot in there; 1m x 2m choose a 2 pot system for full growth. If you're growing smaller plants you could use a 3 pot system to maxmise a 1m x 2m grow space.

If you're unsure and want to talk to an expert, give us a call on

0116 2697580

The Green Man FD System is for those growers who want high yields and exceptionally high-quality crops, but prefer to grow in coco mix, which by it's very nature, doesn't require the smae level of precision as pure hydro. Giving you the full forgiving benefit of coco growing with a huge, full throttle grow system.

So, we put the Green Man Combi System in the novice/intermediate/advanced catagory. Aimed at all growers with any level experience that want to push their crop production even further than they have before.