BN, Need more information. 1. Is this for vegetables? The picture I believe shows a tomato plant. 2. What is your experience using this system? 3. How often do you water? 4. How many plants are you using this system on? 5. What is the hole spacing? or how many holes per bottle? 6. What size are the holes in the bottle? 7. Have you done an experiment with regular watering as a control? I think I have gone over my question quota. Sorry about that. Aloha

Tree collards?

No, I don't think you are overreacting. I'm curious, how many units are in your building? I'm guessing it's small, but I could be wrong. What I'd do first is check to make sure that the switch labeled back stair well actually does control the lighting on the stairwell--because in older buildings, sometimes wiring gets re-routed, but the labels in the circuit box don't get changed. Same with the oil burner. Then I'd contact a lawyer to see if you have grounds for suing the landlord to get back the money you've spent that you shouldn't have. Then I'd contact the landlord. I'd wait on contacting the other tenants until you have a plan for dealing with the landlord. You don't want one of them running to tattle to the landlord before you are ready to deal with the situation. Also google "landlord/tenant law [yourstate]" to see what the law in your area has to say about this.

I have been using vases, etc, from the thrift. I learned quickly to check to make certain they are solid color glass, and not with a color coating, as it comes off during tumbling. I look down through the vase to the bottom. There you will see evidence of the coating being scratched, or whether it is solid color. It turns out so nice after tumbling. I use an ice cream maker, as suggested by Slow. I tossed the glass sand that was left over.