The Old Faithfull Swim Jet by Waterway requires a pump that can pump 650 Litres Per Minute to opperate correctly and when three of four of these jets are placed correctly apart, opperate as a very good training system for swimming against and general aquatic resistance exercise.

The orifice size is a massive 1.5" in diameter and has a directional adjustable eyeball for flow direction. The water conection is 2" slip and the air connection is 1/2"slip.

The jet can be used on fiberglass pools / swim spas, concrete pools and vinyl liner pools and above ground pools.

The diameter of the hole that needs to be cut when using on fiberglass surfaces or vinyl surfaces is 121mm.