Reply To: Light from bottles filled with water.

[retired profile of WrethaOffGrid]

Here are a couple of videos on this subject, the weak point IMO is going to be sealing it in the roof/ceiling so that it will not eventually leak around the bottle. And you would need to put something in it to keep it from freezing when the temps drop low enough to freeze, a bit of alcohol might work, anything to lower the freezing temp of the straight water, they call for adding a cap of bleach to keep the water clear, one would have to be cautious about mixing bleach and alcohol, I am not a chemist and do not know if that would cause harmful fumes or not, perhaps just adding alcohol without using bleach would be enough to keep the water clear… it’s something that would have to be tested of course, you don’t want to find out that your bottles are growing stuff AFTER you have them installed and sealed in the ceiling.

Wretha