TT Pumps were asked to supply replacement foul and surface water pumping stations at Tower Vaults, an underground retail mall adjacent to the world famous Tower of London. Part of Tower Hill, the Vaults themselves have an interesting history, being the surviving part of the historic Mazawattee warehouse that was extensively damaged during the Second World War.

A challenging site with severely restricted access, TT provided a robust and effective solution that allowed for ease of installation and met a complex set of specifications.

The Problem

An enquiry was received by TT Pumps for a 400 volt 3 phase set using self-priming pumps and operated by float switches, with a control panel including volt free contacts. Specification requirements included gate valves and non-return valves on the discharge of each pump, along with a 1.4m suction head and discharge run.

The project also required a Surface Mounted Sewage Set for the pumping of foul water from toilets and restaurant units. This was required to meet a specific specification, including having a 5m static head, 20m run, volt free contacts, and a 3,500 litre capacity to cover the chamber, with access limited to just 2.1 x 1.8 metres.

A key challenge of this project was the severely restricted access to the basement. It was imperative that all supplied pumping stations and components would overcome these issues and be able to be easily installed and maintained as required.

The Solution

TT Pumps supplied a Triple Pump Set, consisting of a JE 3-210 G10 ET40 self-priming surface mounted pump. It has a cast iron construction, complete with a 4kW 4-pole 400V/3Ph/50Hz motor DN80, flanged suction and delivery connections.

For foul waste from toilets and restaurant units, TT supplied a Trojan 3500 VD 1.5 400V Above Ground Packaged Pumping Station with a 3500L polyethylene chamber housing and pneumatic level control with LCD display. It was also supplied with a manual hand pump and emergency surface mounted generator socket.

Rod Green, for and on behalf of The Environmental Protection Group Ltd, said: 

“TT Pumps provided robust part pre-fabricated and part component pumping stations to overcome access issues whilst still allowing for ease of installation without compromising quality. 

“The client now has new, reliable pumping stations working effectively.

T-T pumps have provided good, honest advice and service throughout the project and EPG are currently working with them on a number of new projects.”

For more information on our Pumping Stations, give our experts a call on +44 (0)1630 647200