Is it a normal fishing habit to fish for three days and dry the net for two days?

Every proverb has its rationality, so does "fishing for three days and drying the net for two days". It can be said that "fishing for three days and drying the net for two days" is a normal fishing habit in ancient times and even in modern times.

In ancient times, fishing nets were made of threads woven from plant fibers such as cotton and hemp. If such fishing nets are soaked in water for a long time, they will rot and soon become weak and rotten. Therefore, it is necessary to "fish for three days and dry the net for two days" to ensure the long-term use of fishing nets.

In the sixties and seventies, there was a fishing net called "trawl" in my hometown, which was mostly made of cotton thread. After the new net is woven, soak it in pig blood, dry it, and steam it in a pot before it can be used. After a year or two, the fishing net was washed again, dried and treated with pig blood for durability.

Of course, nylon nets appeared later. Even the fishing nets made of chemical materials such as ethylene, polyethylene and polyvinyl chloride will shorten their service life if they are always exposed to the sun. Therefore, "fishing for three days and drying the net for two days" is no longer a normal fishing habit of modern people, and this word has become just an idiom used to describe some lazy and persistent people.