My notes are very basic as the Terra Perma team have well done notes. Links to the quick read pdfs below and a video where Charles explains it all ;o)
– Bentonite clay swells 6 times and oges to where the leak is to block the drainagge. Note: It does not stay vertical so make sure it’s for the bottom. (Makes the cheapest kitty litter too).
– Upside down flower pots with woodchips around is a good set up for the bottom.
– Liner between reservior and soil to avoid the silt going down but not necessary.
– FIFO guys have wicking beds with feed float like toilets so when the water level goes down it automatically tops up and they connect it to a few beds (bathroom sinks) so when they’re back all they have to do is harvest.
– In winter the drain needs to be made smaller so the nutrients are not lost. Worms also use tit and their castings can block the drains so beware of the size.
– Don’t use grey water.
– Mulch the top layer not only for evaporation but to block UV too.
– Blue barrels can be used but research on the chemicals otherwise stick to brown olive barrels.
– See plant placement figure in one of the pdfs.
– Coarser/Larger woodchips = better (lasts 2 years usually).
– Fit in the watering pipe on the opposite side of the drain and you can use a distribution pipe too if the bed is big.
– Potting mix to be used as the nutrients will be held in the bottom.
– For olive barrels check that the rubber on the lid is not twisted or messed up and seals properly.
– Good for high water needs and not deep rooted plants.
– Don’t go for smaller than 13 mm drain holes.
Wicking Barrels – Charles chatting with Cara in the gardening segment of The Couch – Episode 487
Wicking Pots – Inspection of Reservoir Area