I love this way of growing its what i learnt with so growing in soil is just way to slow, messy and i cant get the yeild out of it.
Now to try and explain this lol.
The water containing your nutrient gets pumped onto the tray.
On the tray is the white spreader matt which spreads the water into a thin film of water that runs off the end of the tray back into the tank underneath.
You then sit your plant on top. You need plenty of roots coming out of your 4"block before you place it on the tray.
The pump should be on 24hrs a day BUT me personally put the pump on a timer randomly coming on for 15 mins every few hours. This allows the roots togo searching for water and that they don't know when their next feed is coming so when the water does come on the roots suck up what they can.
The trays are slopped so the water runs off and doesn't pool and become stagnant.
If you're talking about the brown 'jiffy' blocks that you put in water which then swells up.
Hope that answers your q's 👍✌️😎
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