Guys, little help if you don't mind. Can quiet work out if this model needs to be connected to a W/C, only need it for a basin. https://uk.grundfos.com/products/find-product/sololift20.html Any ideas? Thanks AW
C-2 and D-2 are for grey waste water, would still need to be connected to a stack pipe,or out to a drain gully to dispose of water. https://www.plumbworld.co.uk/grundfos-sololift2-d2-19701-25532