im trying to do things by the book for a change to get a reliable system. I want to try and do it the way it was designed rather than start fucking about with it. its working now with a lesser flow rate and a few other tweaks like the float level.
very much plant limits. and that sounds a bit like a flood and drain table to me more than a PPK.
I don't think the addition of drainage holes takes it away from being a PPK. If i'm not mistaken this is how they were originally designed. The upper bucket had a bunch of drainage holes to allow the top bucket to drain into the lower chamber.
The elimination of the holes and strictly relying on the tailpiece came later when they figured full flood saturation would further enhance performance.
How close are you to Melbourne? Found this online
Or was it a price issue?Sage Horticultural (in Melbourne) has just started selling Turface MVP, a calcined clay product that is used widely in the USA by bonsai growers, and those growing any sorts of plants in containers.
I'd be interested in learning more about other clay/rock type medias which allow enough capillary action and air/water ratios similar to Turface.
There has got to be others out there no?
What else wicks well while still maintaining great air/water ratio?