I always thought I knew many brilliant ways to reuse old plastic bottles, but recently, my friend surprised me with his creativity.
While visiting his house, I noticed something unusual in his garden. About thirty empty plastic bottles of the same size were hanging at a small height, all connected together. Water was flowing through them, but I couldn’t figure out what they were for.
Curious, I asked my friend, and his answer amazed me! It turned out to be a homemade solar water heater. As the water passed through the bottles, it absorbed the sun’s heat and entered his house already warm.
Thanks to this simple but ingenious system, he always has free hot water during the warm months. Of course, this method wouldn’t work in winter, as the water would freeze, but for summer, it’s an excellent solution, especially for those with a garden or vacation home.
Had you heard of this life hack before? Anyone can build this practical system at home—all you need are some plastic bottles, basic materials, and a bit of DIY skill!
