




Tried a DIY self-watering trick for vacation
*first 2 pics are before the trip and the last 3 are the day I got back.
I went away for 9 days during week 6-7 of flower and didn’t want to ask someone to water my 3x3 bed for me. I looked up some self-watering methods instead of blu-mats because I already had to buy an “emergency” dehumidifier and didn’t want to spend even more money.
I found a method where you place 1 gallon jugs of water on the surface of the soil, then prick 2 very small holes - 1 near the top and 1 near the bottom. The trick is to use an extremely thin sewing needle, which I didn’t have. I had to use a push pin, which made the holes too large (and the water flow too quickly). I then read that I could break off the tip of a wooden toothpick inside the bottom hole, which is supposed to allow just enough water to drip out. This only partially worked, it actually made too-tight a seal on a bunch of the jugs.
Here’s what I did before leaving for my trip:
Watered 3 gallons (my bed is roughly 70-80 gallons of soil). I typically water 2 gallons every second day, then 3 or 4 gallons once per week. This is in flower with around 80F and 45% RH during lights on. And it’s a very full bed, the plants are filling the full 3x3 footprint plus hanging over a bit.
I placed seven 1 gallon jugs with the pinholes around the surface of my soil bed. I tried to place them near the bases of all the plants.
When I got back, my plants had survived just fine. However, only 3 of the water jugs fully emptied. 3 others only dripped out around 1/4 of the jug, and one did slightly more than that. Luckily, the plants and all of my worms survived. I lost maybe 2 small handfuls of fan leaves that got crispy and brown, and I’d say the plants look like they’re fading slightly early.
Overall I’d say I should have tested way before I left, and ordered some really thin sewing needles to make the holes the right size. But I got through it and didn’t need anyone coming to my house and watering for me.