I took care of placing new tanks, I set up connections with inlet and drain circuits, I made changes such as setting up, or removal, of components (nozzles, level indicators, etc.) I fixed a large amount of damages (leaks from the bottom, collapse of the roof, replacement of deteriorated nozzles, etc.).
In this way, I was able to accumulate experiences on the most appropriate way to manage a wide range of problems that plastic tanks can have during their span of life.