Vertical pallet planter, slightly different Airlift method.in a 14 inch high bucket and pumps about 4 ft high
I am doing a couple of vertical pallet planters and changed the airlift to suit the planters. In this case, the next planter will have 2 wooden legs in plastic buckets. The water will drip down the legs and back into the buckets. I usually use the t joint method outside the bucket but I also appreciate that not everyone has room for a u tube that is one ft lower than your T joint. I tried a few different methods and this one works.
This way uses all the depth of the bucket and you might get a little bubbling when it restarts for a few seconds but usually not. Note that once again, I got a few days where the tubes acted funny before they behaved themselves. Pretty sure it is whatever sheen or grease is on new tubes. I think all new tubes need to just sit low with nutrient running through them for about a day before you put them up in position. There is almost zero drainback in new tubes and that is what is causing the problem. Newbies are going to be very confused by this.
My pallet planter project is at instructables A very interesting aspect of this (for me) is that the air pump is 120 ft away from the planter. (It still works and pumps the air through 1/4 inch tubing all the way to the greenhouse). Brian