Water draining
It is recommended to install the sump below the ground freezing zone.
The draining gullies and draining gullies with sumps may be equipped with thrash boxes. The thrash boxes are made of galvanized plate, in the walls and in the bottom there are hole, to drain water. The thrash box in the AS system is designed in such a way that even when completely filled does not block the water flow, however in that case it does not catch the thrash, either