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Manhole design and construction has remained unchanged for many years.

Specifiers, designers and contractors now have to consider various elements including build quality, speed of construction, health and safety issues and water tightness.

After an extensive research programme Milton has introduced the Perfect Manhole System, to meet the challenges of modern day construction. This Milton off-site solution comprises a precast manhole base available pre-benched in any configuration within just days of requisition, and in addition, sealed chamber rings with a thicker wall, rubber joint and sealed cover slab.

This unique system of products combine to form the Perfect Manhole designed and manufactured to last 120 years.

Advantages of the Perfect Manhole System

• Safer construction.
  No requirement to work in confined spaces. No requirement to form a concrete surround. Reduction of open excavation.
• Fast installation.
  The modular solution eliminates the need for wet trades resulting in rapid construction compared to conventional methods.
• No need to surround in concrete unless specifically required.
  130mm wall thickness.
• Available at short notice.
  Our modern methods of production enables just in time delivery of all components including bases at short notice.
• Design freedom.
  All designed monolithic Perfect Base characteristics such as location of the inlets and outlets and invert configuration can be manufactured individually and exactly in accordance to the wishes of the specifier and client.
• Perfect Hydraulics – everything flows.
  Optimised flow characteristics by customised base configuration of all inlets and precise drop in channels and pipe connections.
• Watertight.
  The combination of a thicker wall and rubber joints ensures a watertight structure.
• No water ingress into sewerage network reduces treatment costs.
  The combination of a 130mm wall and sealed rubber joint is guaranteed to withstand 5m head of water pressure.
• Combined seal includes load distributor.
  Load distribution ensures even distribution of vertical loads.
• Allows joint inspection.
  Correct installation can be visually confirmed.
• Fully tested under factory conditions.
  The whole system from base to cover slab is subject to testing.
• Kitemarked solution manufactured under factory conditions.
  Complies with the requirements of BSEN 1917 and BS5911-3
• Concrete for Life – Built to last.
  High quality durable concrete with a minimum 120 year design life.
• Customer choice.
  The Perfect Manhole is available with or without double steps
• Complete Solution.
  The Perfect Manhole is one complete unit
• Greater Flexibility.
  Milton gives you more flexible inlet and outlet configurations
• Flexible Connections.
  The Perfect Manhole can connect to plastic, clay or concrete – giving you a larger choice
• Efficient Construction.
  Available in varying depths for efficient construction
• Base Options.
  Available in standard base units, shallow base units or as a plain base unit
• Cover Choice.
  Each Perfect Manhole is available with a cover slab opening of 600x600mm, 675x675mm or 1200x 675mm
• Full take-off service available.
• Lifting apparatus available for fast, effective and safe handling.
• Full installation guide available.