Article in English: Do not fill the bottle all the way. Instead, fill it up to just where the neck begins to narrow. You can also add some plant food into the bottle at this point. If you have a very large plant, such as a tree, you may need to make a second bottle. If the soil is too dry, the water in your bottle will empty too quickly. If there are any bubbles or the water level is changing, take the bottle out and try again. This happens when the bottle mouth didn't seal against the soil.

Summary in Indonesian:
Tuang air ke dalam botol dan pasang tutup atau sumbat gabus. Pilih tanaman. Pastikan tanah dalam keadaan lembap. Periksalah kondisi botol untuk melihat apakah ada masalah.