One of the first things we realized as soon as we set a foot on Thailand was… the prices were totally western-ish! So it’s always nice to save some money on something as essential as is water.
We luckily found this filtered water machine in many different places in Bangkok (and they told us you can find them in all the major cities of the country) where you can get 1L of water for 1 bath (0.025€).
We tried it a little bit skeptical but now this is the first thing we do every day, get our two bottles full for a couple of bath. Awesome!