Ten shortcomings of water purifier, who knows?

Donors should not stick to their own opinions.

Ultrafiltration cannot remove scale.

Pure water needs electricity.

Raw salt should be added to soft water.

Energy is a concept.

Replace the filter element regularly.

Life expectancy is also very short.

Donors don't need it at all.

So you can drink muddy water with boiling rust.

Use a dirty kettle to hold water, and use residual chlorine water to cook, wash vegetables and wash clothes.

Then I got stones in my stomach and my clothes became more and more yellow.

In short, there are more than a dozen questions.