thailer
Well-known member
is the 4” drain pipe just to create a larger void to act as the reservoir? last time i had looked at sip it was one container set into another with a wicking column connecting. this seems simpler and less materials
yes! it helps support the soil but is there to create a void for more water. the perlite is lightweight and acts as a wick across the entire bottom. the soil level isn't as deep as it is wide and in the video i watched on youtube, the guy Albopepper said that the soil depth determines how moist the soil will be and said 16" is perfect. the water can only wick up so high. so if you have a SIP thats got a shallow bed, the soil will be rather moist. if you have a deep bed, the top soil will dry out and you'll need to top water.
a lot of the designs i saw had the soil sitting on top of a tote lid that had a hole in the middle where the soil goes down into the reservoir to soak up the water. i think that leaves the soil soggy in one part and sometimes i see brown roots. i've seen ones like earthbox where the soil sits on a grate and in each corner theres holes where soil goes down into the reservoir. i have one like that outdoors and its pretty good. it comes with a plastic sheet for covering the soil. i'm going to try a 2-3" thick layer of straw instead. so far with no plants, sitting in my grow room which typically dries out my fabric pots, the soil is moist and i've barely added any water to it. I think that keeping the soil out of standing water and having it sit on top of a wick that will distribute water evenly across the bottom will make the soil evenly saturated and there won't be any soggy brown roots, gnats or over watered plants.
i'm going to transplant a clone into it today. lets see how well it works with a small clone that is freshly rooted.
also, the plants i just put in that i made soil with ewc from the farm that are doing amazing, I am almost certain i used compost instead of peat moss when i built the soil so its 1/3 malibu compost (what i was trying to avoid) 1/3 ewc, 1/3 perlite. lol
so this whole couple rounds i've been trying to figure out with these big 20 gallon pots that it must be the compost sources and trying different brands then trying out the castings, i think the whole issue is me not giving them enough water. i harvested ORange Cream and took the KIS soil out of the fabric pot and put in a new SIP. the root ball felt moist on top where i am watering but the bottom and basically most of it was dry as a bone. i think it gets too dry during stretch and then i can't get it moist again. i don't have a problem in veg because i use plastic pots which i think keep moisture better personally and i can pick up to water so i know how much to add. the big pots are heavy and when the plant gets big, good luck even getting close to it to grab the handles. lol