Pump Station Rising Main Blockage support is handled around the actual pump station arrangement: chamber type, pumped material, pump duty, controls, alarms, valves, rising main, access, ground conditions and whether the work is repair, servicing, refurbishment, replacement or new installation.
Likely causes
A blocked or restricted rising main can make a pump station look as if the pump has failed, even when the pump is running. The diagnosis should separate pump faults from control faults, chamber faults and discharge pipework problems. A structured check avoids replacing a pump when the real issue is a float, valve, panel or rising main fault.
- pump runs but level does not fall
- flow returns through the non-return valve
- pumps trip under load
- high level alarms repeat
- rising main route needs tracing
- valves and discharge pipework need checking
What to do first
Keep clear of chambers, wet electrical equipment and live control panels. Do not enter a confined space. Reduce water use where possible if the chamber level is rising, then send photos of the control panel, chamber, pumps, alarm display and any visible labels. For urgent loss of service, call the pump station engineers directly.
What Alton Pumps can check
Our engineers can review the pumps, float switches, control panel, valves, guide rails, non-return valves, discharge pipework, chamber condition and rising main symptoms before advising on repair, refurbishment or replacement.
How we can help
- pump runs but level does not fall
- flow returns through the non-return valve
- pumps trip under load
- high level alarms repeat
- rising main route needs tracing
- valves and discharge pipework need checking