The use of vacuum fluid collection systems can be employed in a wide range of situations. Roof drainage is one typical example of the versatility of the technology. Choosing a vacuum system for roof drainage allows storm water to be lifted to the back of the roof for disposal to ground level. This is often very sought-after in arenas as it eliminates the requirement for down pipes at the front of the roof, thus leaving an unobstructed view for spectators. Eliminating down pipes at the front of the roof may also be desirable for the aesthetic appeal of buildings.

The roof drainage systems offered by Iseki incorporate interface valves located in the roof space. The valves open and close automatically as the rate of rainfall dictates thus allowing the system to manage high and low flow conditions without difficulty. Vacuum fluid collection systems have the added advantage of not requiring electrical energy. This combined with their low maintenance due to self cleaning high velocities allow an efficient and cost effective alternative to the use of pumps.

The new number 1 court at Wimbledon is an example of the successful application of vacuum technology for roof drainage. Iseki where approached by the All England Lawn Tennis club to offer a drainage solution for the symmetrical cantilevered roof with no supporting columns within the seating area. The vacuum system presented by Iseki proved to be the ideal choice. The system allows drainage of both the inner and outer gutters via dual ring mains back to a single collection station and has the capacity to be switched off during play on the court, thus ensuring complete silence for the players. The exhaust gases from the system are exhausted to atmosphere under the stands, whilst the rainwater is discharged to the storm water drain in the road outside.