Chapter Eleven: Spa Jets - Jacuzzi Z Builder Series Mechanics And Repair

Chapter Eleven: SPA JETS:

There are several methods jets are installed. One way is ½ of the jet body is
placed on the plumbing side of the spa. Then the opposite half is screwed into the
half with either a gasket or silicon sealer from the water side. Then the jet
assembly snaps into the 2 halves.
The second method is the jet assembly inserts through the spa wall and tightened
by a nut on the plumbing side. Either silicone or a gasket is used to seal the
housing.
Jacuzzi: In the mid 90's Jacuzzi spas used their own patented jets. The older
have the AMH jet with is a medium size jet with directional nozzle but you can
adjust the flow. This jet is commonly used in the footwell area. Because you can't
adjust the flow the water from the pump has an output incase other jets nozzles
are closed. Next popular are the HTA jet which is a large jet. It has adjustable
flow and direction. Jacuzzi used these are their upper end spas.
In the mid 90's they started using their HTC jets which they continue to use on
their jetted baths even to this date. It was a popular jet. Finally they began to use
the BMH jet which is also a popular jet. On a few models you will find the HTA,
HTC, and BMH jet. Many have the HTC and BMH jets. On the Z series they used
mostly the BMH jets.