I found some use for my leftover sub from monotubs and threw it into a small plastic storage box to make a humongous cake tek out of it. Now I need to fruit it, and I decided to put two bigger, same style boxes on top of each other.
I know that most of the time people just drill the shit out of the boxes to make those GE holes. I might still want to use those boxes later on, and drilling and tidying those holes is a lot of work, and I prefer time optimized solutions now.
So I thought I'd just line the top of the lower box with 2cm F5 filter fabric and use that for GE, so that the filter would run all around the top ridge of the box and the other box would sit on the top of it, like in the picture.
The larger boxes are 14.8 cm deep, forming 31.6 cm of chamber height with the filter. With 7cm deep cake and about 3cm perlite on bottom that should leave 21.6 cm vertical room for growth, which should suffice I believe.
What do you think? CO2 is heavier than air, do you think I would need some GE holes lower to the fruiting chamber. The GE would happen 5.8 cm above the top of the cake.
There's some pics for illustration, one of the smaller box. I'm going to use its lid to mount the cake on it on top of the perlite layer to not make it dirty, I want to reuse it. The smaller box is there inside the larger boxes for illustration purposes to give an idea of the size difference.
Edited by ericcapton, 04 October 2020 - 05:22 PM.