Total Water Solutions designed the rotary distributors made from heavy galvanised mild steel incorporating a rotary bucket. The centre column and bucket assembly are open and therefore corrosive gasses associated with sewage are vented to atmosphere and are not trapped as in some other designs.

These units are low maintenance type incorporating a non-contact seal at the centre column and are available as siphon machines where operating heads are minimal. These units can also be supplied with dosing siphons, centre drives and, or overflow arms.