The Forge anti-flood sewer valve we fit has been designed to prevent backflow from surcharging sewers. Wherever there is danger from rising water backing up into a property through the drainage system the valve will close off the backflow automatically to prevent flood damage. In a combined sewer system we recommend that rainwater run off is treated separately until the flooding subsides.

Forge valves have now been used to protect many basement flats and low lying properties previously affected by foul and combined sewers unable to cope with abnormal weather conditions. The valve is float operated forcing a closure of the pipe when backflow occurs. Increased backflow pressure on the flap forces it tighter closed preventing contaminated water and sewage from entering your drain system.

The threat of global warming brings with it forecasts of increased sea and river levels. Coupled with this the need to build more houses on often unsuitable and low lying areas where the risk of flooding is greater can only lead to more incidents of property damage.

Inside commercial sewer valve viewed from the top
with lid removed showing flap float and spindle

Environmental & Physchological Damage

There are 2 million properties at risk from flooding in the UK. Many will be directly affected by rivers overtopping but more homes are damaged indirectly by the backflow of sewage. The causes include severe rain storms, flooding, breakdown of pumping plant and blocked pipelines.

The financial losses caused by sewage flooding events are known to be in the region of £30,000 to £50,000 per property. In less than 30 minutes a house or basement flat can flood with untreated sewage to a depth greater than 1 metre.

All furniture, white goods, electrical, entertainment and personal effects are beyond recovery due to contamination.

Plaster on walls and timber floors will need to be replaced together with electrical wiring and carpets.

The process of drying out can take months, during which the property is often uninhabitable. Contaminated belongings and waste material is removed to a tipping facility where it adds approximately 10 cubic metres to landfill for each affected property.
The distress to occupants is beyond calculation. No amount of money can replace possessions of a life time

Our Service

Our aim is always to cause as least disruption to our clients as possible when carrying out valve installations. Generally most valves can be installed with in two days depending on location and drain depths.

We always attempt to ensure that the new manhole your valve is encased in is as discreetly located as possible and that when our team leave, your premises are clean and tidy.

The valves we install are in our opinion the best in the market and as far as we are aware there are no other non return valves recommended for sewage and storm water application.

When you way up the average cost financially and physiologically of flooding, it definitely pays to have the best protecting you and your property.

Maintenance Contracts

Once your new valve is installed our service does not stop there. It is highly recommended that you service your valve twice a year, this may be simply checking and cleaning that the valve is operating correctly. We can arrange for a maintenance contract, whereby for a small fee you can have an experienced engineer visit you at agreed times of the year to maintain your non return valve.

Our objective is to give you piece of mind!