| Indoor drain and short branch cleaning | Building drains, typically 1½–4 in. (40–100 mm); confirm pipe material and access limits | Soap residue, grease, soft organic buildup, and small deposits | About 1–4 gpm (4–15 L/min) | About 1,000–2,500 psi (70–170 bar) | Prioritize a compact unit, suitable small-diameter hose, controlled pressure, and fittings compatible with the drain access. Use extra care with older or fragile piping. |
| Residential sewer lateral cleaning | Commonly 4–6 in. (100–150 mm); materials may include clay, cast iron, PVC, or other plastics | Grease, sludge, soft roots, and routine sediment | About 3–8 gpm (11–30 L/min) | About 1,500–3,000 psi (100–210 bar) | Match hose length and diameter to the access point and run. Select suitable flushing and penetrating nozzle options; inspect uncertain or damaged lines before aggressive cleaning. |
| Commercial building drain maintenance | Approximately 4–8 in. (100–200 mm), depending on the drain and building | Grease, scale, accumulated sludge, and recurring deposits | About 5–10 gpm (19–38 L/min) | About 2,000–3,500 psi (140–240 bar) | Consider longer hose capacity, a stable water supply, convenient transport, and nozzle choices for both forward cleaning and rearward hose propulsion. |
| Storm drain and catch-basin cleaning | Often 6–18 in. (150–450 mm); larger systems may require specialized equipment | Sand, silt, leaves, and other loose sediment | About 8–20 gpm (30–76 L/min) | About 1,500–3,000 psi (100–210 bar) | Flow and water volume are especially important for moving sediment. Confirm where flushed material will collect and whether a separate vacuum or disposal process is needed. |
| Municipal sewer line cleaning | Typically 8 in. (200 mm) and larger; confirm diameter, length, and access structure | Heavy sediment, grease, deposits, and some root intrusion | Often 20 gpm (76 L/min) or more, selected for the pipe and cleaning plan | Commonly around 1,500–3,000 psi (100–210 bar), subject to the system and nozzle | Evaluate total water demand, hose management, vehicle or trailer capacity, recovery needs, and safe operation from the access point. Larger lines may call for specialized jetting equipment. |
| Scale or hard deposit removal | Pipe material and condition must be identified; diameter alone does not determine suitability | Mineral scale, hardened deposits, or tenacious buildup | Choose based on the selected nozzle and removal method; adequate flow supports flushing debris | Use only a pressure appropriate for the pipe, nozzle, and deposit | Assess pipe-wall condition first. Consider inspection and a controlled test pass; excessive force or unsuitable tooling can damage weakened, corroded, or brittle pipe. |
| Root intrusion management | Commonly encountered in older sewer laterals and joints; inspect the actual pipe condition | Fine roots or established root masses at joints and cracks | Typically selected for the line size and root-cutting nozzle; flushing capacity is also important | Set according to the cutter, pipe condition, and operating guidance | Jetting can remove roots but does not repair entry points. A camera inspection may help identify damage; recurring intrusion may require pipe repair or rehabilitation. |
| Cold-weather or remote-site operation | Any compatible pipe size for the selected equipment and hose | Seasonal maintenance, isolated sites, or work with limited utilities | Determine from the job’s nozzle, pipe, and available water supply | Determine from the job and the equipment’s rated operating limits | Check water availability, freeze protection, power source, transport, hose reach, and safe drainage. Follow the equipment manufacturer’s operating and winterization instructions. |