Now commonly used to clear blocked drains and to pre clean drains and sewers for maintenance or prior to inspection. Drainflow own two units, one producing 10gpm (suitable for 100mm to 150mm dia drains) and the other producing 16gpm (suitable for main sewers or larger pipe work). All operatives are trained and certified in the safe use of this equipment. Most drain contractors employ this equipment but it has to be managed effectively to avoid potential pollution and safety incidents. What can H.P. jetting and drain cleaning achieve?