НЕ скучный тест. Жесткость воды покажет цвет :)

Описание: Папа с дочкой нескучно проверяют жесткость воды с помощью цветового индикатора.

If you're looking for an easy test to see if your water is healthy, then this is the test for you. By using this test, you'll be able to know if your water is hard or alkaline, and whether or not it's suitable for drinking. So check out this video and see for yourself how a tough water test can help you get answers to your water questions!