What is the minimum waste discharge pipe size for a Saniflo?
Saniflo state 22mm outside diameter for a few of their units (not all of them), however some problems soon arise when 21.5mm overflow plastic pipe is used because its wall thickness is greater than copper and therefore the internal diameter is well below the minimum size and will cause blockages usually on 90 degree bends. In this instance we would have to re- install the entire unit and pipe work to warrant any repair we undertook. PLEASE NOTE THIS as without this work guarantees are void.
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