Aerated Grit Chambers 2

SPIRAC have several grit chamber installations in Canada.  

This one was commissioned in 2009 and features long run spirals in cast-in-place troughs.  Various liner options are available, in this case Hardox wear bars are utilized.  This provides long liner and spiral life given low RPM, submerged and intermittent operation.

Aerated Grit Chamber
Aerated Grit Chamber