Our website uses cookies to enhance your experience.
By continuing to use our website, you are agreeing to our use of cookies. Necessary cookies are always enabled.
You can read more about our
Cookie Policy
in our Privacy policy
We value your privacy
Strictly Neccessary
Essential cookies enable core website functionality,
such as secure logins and preference settings, without tracking personal activities or collecting data for ads.
They ensure the site's proper operation and legal compliance, remaining always active
Preferences
Preference cookies enhance your browsing by remembering settings like language and regional preferences,
tailoring the site to your needs without tracking activity across other websites
Statistical
Statistics cookies gather anonymous data on site interactions and page visits to help improve functionality,
ensuring a smoother user experience without personally identifying users
Marketing
Marketing cookies track browsing habits across websites to deliver relevant,
tailored ads, enhancing value for publishers and advertisers by focusing on individual preferences.
We were asked to specify twin foul water pumps capable of 6l/s at a 12m head due to a two storey basement excavation. The pumps required large solids clearance due to the nature of the multi-occupancy dwelling. A mixer would be needed to prevent the build-up of floating fats and solids. We were asked to plan the route through the two storey basement for the rising main to run.
METHOD
• Twin guide rail mounted pumps were installed with an 80mm solids clearance into a concrete sump 10m long, 2.4m wide and 3.5m deep.
• A horizontal mixer was fitted into the sump in a separate location to operate in conjunction with the pumps, operating just before the pump run.
• A 110mm HDPE rising main was supplied with electrofusion fittings and anti-vibration couplings.
RESULT
• The pumps have an 80mm clear passage through the body of the pump, reducing the chances of blockages.
• The duty / standby set up means each pump is capable of the necessary flow rate, in case one fails for any reason.
• A mixer circulates the water throughout the sump so that floating solids are mixed and pumped away.
• The pumping station service interval has been agreed with the contractor.
• The comprehensive control panel allows for BMS monitoring and a telemetric system for offsite monitoring.
FOCUS ON:
THE BENEFITS OF A MIXER
Installing a mixer in the sump prevents the build up of fat and other floating solids.
Without a mixer, these deposits can build up on the floats and in the upper water column. This can interfere with the float switches operation and degrade the connecting electrical cable.
Aqua365 Login