when doing out doors organics of corse... you get pvc that you post into the ground so its sticking straight up. before yuo put tyhe post in the ground you drill it like swiss cheese and you lay the pipe as discribed in circler rows with even spacing starting 6in from the base of the stem .. its for oxigen in in the ground plants you can do it with 250 gallon or small air pots to put sand and a bit of gravel at teh bottom 4 in and be sure you use my layering tech of and this is from top to bottom the order and i dont know any one world wide that does this....


....large rock slabs or big gravel....
..... crab meal.....
...the mix i recommend in the indoor(40% cocoi, 40% pro mix organic, 20% soil) with the amendments ....
.... sand with out salt!...
...big rock gravel.... {2.5-4.3ft deep here...}


put the swiss cheese drilled pvc in first and have it go 4in deeper then the rock base as many holes as you can get while keeping you 1/2in to 1in pipe structually sound... bamboo can be used there are more steps and you can reuse and it decomposes bring mold and stuff pests... put your pipes in in the speard as floows every 6 in in a circle is a pipe going arond till you have a circle and come out 7in each circle ring.. oxidenates the roots mad and heps in wet climates.. there is another secret... but it is pricy and you need caps and eletricty and sergical hoses and air pumps and you run the air tube to the bottom above the last 4in an in and have a hole in the cap f the pvc you force air in... not necessary its like the extra mile... but eh you can try if you like no i wont post pics... i know every tree i see and maybe you do to so if you notice a leaf and live here you might rip and we dont want that.