I'm setting up my outdoor SIPs. I'm a little concerned, after doing my unintentional air stone vs no air stone test, that my outside res's won't have any forced air movement. A lot of the pre-manufactured SIPs (EarthBox etc) are all designed to be run outside, but they seem to have larger openings where the overflow is, its not just a 1/4" hole. One thing I'm considering is drilling holes (maybe 2" apart?) all the way around the res bucket at the level of the 1" air gap, to allow freer air circulation. Any thoughts on that? Would I just be breeding mosquitos? Maybe I need to put goldfish in there....
Below are a couple of pics. So far I have the ProMix/Botanicare Coco blend in the wicks and bottom inch of the pots, and then a heavily amended FFOF/Happy Frog mix, with time release nutes and dolomite lime. There's another pic of some of the girls that will be going into the pots on Saturday (tomorrow its going to be 90º out, Saturday much cooler).
I filled the res's and then added the layers and wet them down each time, and each time the water came out the overflow holes. So there is definitely significant amounts of leaching going on. I think I'm going to transplant, give them a good watering to make sure the soil is settled, and then dump the res's in my garden and refill them with fresh water. I'm concerned about leaving water with a lot of nutrients in it sitting in the res for several months.
Another option is to just let it go. I'll get all kinds of life living in the res, but maybe that's OK. I could add a little Pond Zyme (still researching that) to keep things in check. The res's will (at least on the tall ones) be in the ground up to their overflow holes, so at least the water will be cool and out of the sun.
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