How can efficient water filters be made by hand? I don't know what your filter is.Some time ago, when I was in class, I led the children to make a water filter,I don't know if I can help you: use four disposable plastic cups,Each bottom has a lot of needles,Then put gauze,Put stones in the first cup,Put sand in the second cup,The third Cup has a broken cloth head in it,Put cotton in the fourth cup,The material inside each cup is clean,Filter the water from the cups with stones, sand, broken cloth heads and cotton in turn,Then you can get clean water.I don't know if this can help you.
How does the water purifier start discharging waste water as soon as it turns on the faucet? As long as the water purifier adopts membrane filtration, there is waste water discharge. At present, more RO reverse osmosis membranes are used in household water purifiers. Generally, the water production rate of RO reverse osmosis is 30%, and the drainage rate is 70%. If cascade treatment or wastewater reflux is adopted, the drainage rate will be reduced, but no matter what kind of prevention is adopted by RO reverse osmosis, the highest water production rate will be 70%.The water purifier is also called water purifier and filter. The core technology of the water purifier is the filter membrane in the filter element device. The main technology of the water purifier comes from two kinds of UF membrane and RO reverse osmosis membrane, it is a small water treatment equipment for deep purification of water quality according to the requirements of water use. Generally speaking, the water purifier refers to a small