As we all know, fish therapy equipment is a combination of water and electricity, so the structure of the equipment is that the fewer places where water and electricity are combined, the better, so as to ensure the safety of electricity use.

Single group self-circulation means that each group of equipment needs a small water pump and two heating rods, which means that a group of equipment has three points combined with each other. According to the calculation that there are at least six groups of equipment in a fish therapy hall at present, the six groups of equipment are combined with water and electricity at 18, which poses a great threat to the safety of electricity consumption. Furthermore, there are many unethical practitioners in the fish therapy equipment industry, who are making equipment with the mentality of receiving one customer and earning one, and the price is low, and then all kinds of products and materials used in the equipment are very dangerous. To sum up the above two points, I think the safety control of this kind of equipment needs to be improved.

Full-cycle equipment is a place where only two hydropower stations are combined in the whole set of equipment, so the safety control of equipment use is obviously better than that of single-cylinder self-cycle.