You’ve done your research and selected the perfect packaged pumping station for your site. Brilliant, now it’s time to install it. This may seem like a complicated task, but when undertaken by qualified personnel – such as the ground workers or builders on your site – it’s a relatively simple and straightforward procedure.
A step-by-step guide to sewage pumping station installation
Select a suitable location
Your packaged pumping station will need to be installed somewhere below ground level – you should think carefully about its exact location. It’s important to allow for falls in site drainage and, before you start to dig, you should always check for underground pipes, cables and service ducts.
If the tank needs to be located under a road or footpath, additional provisions – such as a duty manhole cover – will be necessary and these should be bought prior to starting the installation.
Excavate the opening
The next step is to dig a hole for your packaged pumping station. This should be approximately 500mm deeper than the overall length of the tank. If it’s dug by hand, the sides will need to be shored up to prevent earth slippage. If dug by machine, they should be battened for stability. Either way, a dewatering pump may be necessary to drain away any groundwater.
Prepare the excavation
Next, place a layer of clean hardcore into the base of the excavation. This will usually need to be 200mm thick – but, if ground conditions are good, anything above 50mm should be enough. Cover the hardcore with a layer of concrete (minimum grade 25 and 150mm thick) and compact and consolidate both well.
Install the tank
You’re now ready to start the actual installation. Slowly lower the tank of the packaged sewage pumping station onto the damp base, allowing the feet or mouldings to settle into the concrete. It’s important to make sure that pipes and connections are all correctly positioned. If the inlet socket is less than 800mm from the tank’s base, it should be connected at this stage.
Secure the tank in place
Once happy with its position, fill the tank with water (to a depth of 700mm) and secure in place using grade 25 concrete. This should be poured evenly around the periphery of the tank – to a height of approximately 600mm and thickness of 100mm – and vibrated to remove any voids.
Connect all pipework on the packaged pump station and backfill with grade 25 concrete – taking care to keep the tank perfectly level at all times.
Make the final connections
The final stage is wiring. Give the concrete enough time to set and remove all water from the tank. You’re then free to install the pumps and float switches, position the control panel, and make the final electrical connections.
Here at JT Pumps, we offer a professional wiring and commissioning service to help with this process. We will test all connections, making sure that your new packaged sewage pumping station is up-and-running correctly, and can issue a wiring and commissioning certificate for your records.
Get in touch for further help with installation
If you’re still unsure on how to install your packaged pumping station, you’re welcome to get in touch at any point – our team are experts in this area. They will happily answer any questions on the installation procedure and can help to arrange your wiring and commissioning visit.