Pump station recommendations/ones to avoid

[Adam2]

As mentioned in the nearby thread, we've a pump station to install for the foul drainage. It'll be serving a kitchen, utility, WC and an en-suite on 1 floor of a house, the upper floors can drain direct to the sewer. Lift is about 5m and distance about 12m. Not sure if 2", 2.5" or 3" is needed - price goes up a lot for larger diameter.

 

I've been looking into options online and came across these:

 

Vortech 1m wide x 1.2m deep

https://www.tradepumps.com/regular-sewage-pumping-station?gclid=CjwKCAiA57D_BRAZEiwAZcfCxWBe4CvaJ6Uv2H7fe4zX8OXrVfzCINdsAOiMe_NytHsVoAA-sdqu8hoCkfAQAvD_BwE

 

AES 1m x 1m 

https://www.automatedenvironmentalsystems.co.uk/product/1-metre-diameter-packaged-pumping-station-dual-guide-rail-pumps/

 

Drainstore 1m x 1m

https://www.drainstore.com/pumping-stations-pumps/drainstore-twin-sewage-pumping-station-for-one-property-1m-x-1m-twin-pump-version-785-litre-with-guide-rails/

 

thinking that 7-800L should be plenty and having twin pumps should mean we're unlikely to have urgent issues but appreciate thoughts from anyone with experience.

 

Also appreciate any info re pumps or control systems that are good/bad/indifferent. Planning on having high level alarm.