Worker digs trench to laying perforated pipes for drainage system at a construction site.
On construction site, worker digs trench for installation of a drainage system containing perforated
Making hole in a black plastic polypropylene sanitary pipe so that another pipe can be connected
For purpose of connecting another pipe, hole was cut in a black plastic polypropylene sanitary pipe
Storm water drainage concrete ditch tray was made as a drainage canal before construction of road
Underground process installation of drainage pipes for rainwater a stormwater during construction
Process of assembling drainage pipes for outflow of rain water a storm water in an underground
Maintenance of a private residence artesian well pump for water supply
Repair a maintenance water supply well system pump for private house
