Indoor branch drains Kitchen, bathroom, and small-building lines with tight access | About 1½–4 in (40–100 mm) | About 1,000–2,500 PSI and 1.5–4 GPM | Compact, flexible hose commonly around 1/8–¼ in; choose a length that reaches the line without excessive slack. | Portable frame, controlled pressure adjustment, compact reel, and a suitable indoor water supply connection | Confirm the pipe material and condition. Use a nozzle and pressure appropriate for the line; do not assume higher pressure is safer or more effective. |
Residential sewer laterals Routine clearing of grease, sludge, and soft deposits | About 4–6 in (100–150 mm) | About 2,000–3,500 PSI and 4–8 GPM | Commonly a ¼–⅜ in hose; select length based on the cleanout location and lateral run. | Reel sized for the hose, pressure control, water-inlet filtration, and interchangeable cleaning nozzles | Check for offsets, roots, damaged joints, and standing water. A camera inspection can help identify defects before cleaning. |
Commercial building drains Longer runs and heavier routine maintenance | About 4–8 in (100–200 mm) | About 2,500–4,000 PSI and 6–12 GPM | Typically a ⅜ in hose or another size matched to the machine and access; consider reel capacity and hose handling. | Higher water-flow capacity, a robust reel, clear pressure controls, and serviceable filters | Verify available water supply, drainage and recovery arrangements, power access, and whether the machine can maintain the required flow at the intended hose length. |
Large mains and municipal work Large-diameter lines, long runs, and demanding deposits | About 8 in (200 mm) and larger | Often about 3,000–4,000 PSI and 10–30 GPM or more, depending on the machine and task | Larger, heavier hose and substantial reel capacity may be needed; confirm the hose, fittings, and nozzle are rated for the system. | High-flow pump configuration, heavy-duty reel, accessible maintenance points, and vehicle or trailer integration | Assess traffic control, confined-space procedures, water logistics, discharge management, and pipe structural condition. Use trained operators and site-specific procedures. |
Root intrusion or compacted deposits Lines requiring targeted cleaning rather than routine flushing | Often 4 in (100 mm) and larger; inspect the line first where practical | Choose pressure and flow based on the pipe and obstruction; there is no single safe setting for all root or scale conditions. | Use a hose and nozzle suited to the line diameter, bends, and access point; avoid forcing equipment past an obstruction. | Pressure adjustment, nozzle options for the specific task, and compatibility with inspection equipment | Jetting may not repair broken or collapsed pipe. Inspect uncertain or recurring problems and avoid aggressive cleaning of fragile or deteriorated lines. |
Remote or water-limited sites Jobs with limited supply or difficult vehicle access | Varies by line and task | Set the pump around the water volume the site can reliably supply; pressure alone does not determine cleaning capacity. | Plan hose length, elevation changes, transport, and safe handling before choosing a compact or vehicle-mounted setup. | Water-tank compatibility, low-water protection where available, manageable frame size, and straightforward transport | Estimate water consumption from flow rate and run time: gallons used = GPM × minutes. Confirm tank capacity, refill access, and pump requirements. |