Access to the sewer system for inspection, cleaning or maintenance is obtained either through inspection chamber or manhole. Unlike conventional drainage system, the entry of man in advanced plastic drainage / sewer system comprising readymade chamber or manhole is almost not required. In most cases modern technology CCTV inspection cameras for inspection and jet cleaners for cleaning are available.

Most of the sewer requirements are fulfilled in Ultra 600 , however where man entry is essentially required, Supreme is now introducing Ultra 1200 readymade manhole (very soon Ultra 1000 will also be made available).Ultra manhole offered by the company consists of base, shaft and a cone (at the top) with suitable cover solution. This robust manhole, designed, manufactured and tested as per EN: 13598 standards offer multiple advantages.

Fields of application
Ultra 1000/1200 manholes are designed to provide easy access for inspection, cleaning and maintenance of private and public sewer up to 6 meter invert depth. Complete solution having robust design, durability and flexibility makes it suitable for any situation and hence it is superior substitute to conventional manhole.