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A pipe with a nozzle is inserted into the storm drain. After that, the pipe is connected to the compressor and the pressure from the nozzle begins to clean the cavity of the tray, washing away all the garbage into the sand receiver.
After cleaning is completed, a vacuum hose is inserted into the sand receiver, which is connected to a pump suitable for pumping suspended solids. And the sand is pumped out of the receiver cavity into some container.


Major repairs of internal storm sewerage
Major repairs of a storm drain begin with an inspection of the damaged section. For this purpose, inspection wells are used. Moreover, given the slope of the pipe, the rusted section can be detected without any hassle - by the rust streaks on the walls of the well.

Inspection of the inspection well

Next, you need to make a decision – whether to replace chinese student data pipes with new ones by digging a trench, or to use a polymer bushing in the repair work – an insert made of polyethylene or polymer concrete, which will be “inserted” into the internal cavity of the rusted pipe.

Moreover, the main factor influencing the decision is the integrity of the "damaged" product itself. That is, if gravel from the backfill has already spilled into the old pipe, the owner of the house will have to dig out the damaged section, re-equipping the specific branch of the pipeline.

If the old channel is still permeable, a polymer or polymer concrete pipe is inserted into it, which will act as a bushing, reinforcing the rusted section. Moreover, polymer concrete pipes are inserted directly from the well, using screw or hydraulic jacks and a winch fixed in the adjacent well. Accordingly, the winch tightens the pipe segment, and the jacks push it into the end.

After installing a polymer sleeve, you don't have to worry about the integrity of the storm drain pipeline for 50-70 years - that's how long a polyethylene pipe will last, even in a rusty casing. After all, polyethylene pipes are not afraid of soil movements, resist corrosion and do not burst when the channel freezes.

Although the freezing problem can be solved without replacing the pipes - by inserting a heating cable into the pipe, connected to the home electrical network in severe frosts. And in pipes laid below the freezing level of the soil, the water does not freeze.