Old Brook Pumping Station: The Engine Room Beneath Chatham's Streets

Step through the doors at Solomons Road and the air changes. There is a faint scent of oil and iron, the coolness of thick brick walls built to last centuries, and the unmistakable presence of heavy machinery standing at rest. Two great Campbell diesel engines dominate the hall — single-cylinder giants manufactured in Halifax, their flywheels still, their leather belts draped over Blackstone pumps that once shifted a quarter of a million gallons of water every hour. This is the Old Brook Pumping Station in Chatham, Kent: a place where Victorian-era public health ambition meets the quiet devotion of volunteers who refuse to let it be forgotten.

A Solution Born from Necessity

By the late 1920s, the Medway Towns faced a problem familiar to many rapidly growing industrial centres: the lowest-lying streets of Chatham could not drain. Foul water pooled and festered, a threat to public health in an era still scarred by the memory of cholera and typhoid. The answer was engineering — brute, elegant, purposeful engineering. The Rochester and Chatham Joint Main Drainage Scheme, a £650,000 undertaking officially opened on 4 December 1928, set out to connect and lift the sewage of two towns into a unified system. Old Brook, originally known as the Brook Low Level Pumping Station, was one of its vital organs. Completed in September 1929, the station's job was deceptively simple: lift the foul water from Chatham's lowest points up into the main sewer, using diesel power when storms overwhelmed the electric pumps that handled the daily flow.

The Machinery That Kept Chatham Dry

The heart of Old Brook was always its twin Campbell single-cylinder diesel engines, manufactured by the Campbell Gas Engine Company of Halifax. These were not everyday machines. Each was started by a blast of compressed air at 210 psi, fed from two interconnecting air receivers equipped with both the original petrol and electric compressors and their original switchgear — all of which survive to this day. The engines drove large 14-inch Blackstone Unchockable pumps via leather belt, capable of moving vast volumes of storm water when Chatham's drains were overwhelmed. Beneath the engine hall floor sits an underground storage tank approximately 28 feet deep, a reservoir designed to buffer the worst deluges before the pumps lifted the water away.

For fifty years the Campbells served as the station's storm-weather champions, roaring into life when the regular electric Blackstone pumps — a 6-inch and an 8-inch model — could no longer cope. It was unglamorous, essential work: keeping cellars dry, keeping streets passable, keeping disease at bay. When automation finally rendered the station redundant in April 1979, it was disconnected that October. Medway Council acquired the building from the Southern Water Authority for the symbolic price of one pound — a gesture that, in hindsight, looks like one of the shrewdest purchases in local heritage.

Rescued by Volunteers

The station could easily have been demolished. Instead, the Medway Industrial Archaeology Group — MIAG — stepped in. Between March and September 1984, this small band of volunteers restored the building and its machinery, opening Old Brook to the public as a working industrial museum. MIAG holds a management agreement with Medway Council to operate the site, illustrating the development of industry and public services across the Medway Towns. Their ranks are modest — a small number of regular volunteers with skills ranging from engineering to painting — but their commitment has kept the station alive for over four decades.

The Campbell engines remain in working order and are run on open days — a visceral experience for visitors who get to hear and feel a machine designed almost a century ago shudder back to life. The station is also a scheduled monument, designated ME321 under the Ancient Monuments and Archaeological Areas Act 1979, and sits within a Zone 1 Urban Archaeological Zone. It is heritage with legal weight behind it.

Beyond the Engines: A Museum of Medway's Making

Old Brook's collection extends well beyond pumping machinery. A Columbia printing press, manufactured between 1845 and 1851 by Clymer, Dixon and Company, was purchased by Samuel Caddel of Rochester from V & J Figgins of London. It served the Rochester Gazette until 1868 before passing through several local homes, arriving at the station in 1984. Restored to working order, it is occasionally used to print material for the museum — a living exhibit rather than a static display.

Then there is the Aveling & Porter Q-type diesel road roller — thirteen tons, sixteen feet long, seven feet wide — rescued from a children's playing field in Darnley Road, Strood, where it had stood rusting for years. Beginning in 1989, MIAG volunteers spent six years restoring it, fitting a replacement Blackstone ESK engine delivering 28 brake horsepower. It is fully operational today, though its size means it rarely leaves the station grounds. Together, these exhibits tell a story not just of water engineering but of the broader industrial character of the Medway Towns: printing, road-building, manufacturing — the trades that built a region.

Why Old Brook Matters

Pumping stations rarely capture the public imagination. They lack the romance of a steam railway or the grandeur of a cathedral. But places like Old Brook represent something arguably more important: the infrastructure of public health. The drainage scheme of which it was a part transformed living conditions for thousands of people in Chatham and Rochester. That the machinery survives, still functional, still comprehensible to anyone willing to look and listen, makes Old Brook an unusually honest piece of heritage. It does not prettify the past. It shows you the nuts, bolts, belts, and compressed air that kept a town habitable.

Visiting Old Brook

Old Brook Pumping Station is located at Solomons Road, Chatham, Kent, ME4 4AJ. The museum is managed entirely by MIAG volunteers and opens on selected days throughout the year, with open days offering the chance to see the Campbell engines running. For current opening times and event details, contact the station on 01634 842059 or email miag@oldbrookpumping.co.uk. MIAG is always looking for new volunteers — no specialist knowledge required, just a willingness to help maintain a remarkable corner of Medway's industrial past.

This article was partly inspired by old photographs and recordings that came to light when someone brought their personal memories to be digitised. It made us wonder what else is out there — in attics, shoeboxes, old cupboards — connected to Old Brook Pumping Station. If anyone holds old media connected to this remarkable place, services like EachMoment can help preserve them for future generations.