-
This pipe is the upper water pipe, and the long-term use of the water tank will cause fungi and algae to grow, and this layer is the attachment of algae and scale.
-
The impurities and microorganisms in the water attach to the water pipes, and over time, they accumulate more and more, and they become the so-called gelatinous substance;
-
Microorganisms in the water are easy to grow in the water in an anaerobic environment.
Bathroom and other potentiometric boxes, useless, just seal them with cement.
This is for equipotential grounding, and it must be connected, how did this box get like this in construction? Is it the result of brutal construction? >>>More
If the network cable is good and the panel quality is good, in the case of short distance, the impact is there, but not too big. >>>More
Let's put it this way, power saving and comfort are at odds with each other. >>>More
Looking at the picture, I can't determine what material the support under the copper bar is. >>>More