Different types of jetting


The most common types of jetting are;

1.     Water Jetting - Re-circulated tub water

2.     Air Jetting - The introduction of air bubbles into the bath.

Water Jetting

Water jetting generally consists of the use of a water pump to suck the water out of the bathtub and push it back through jets under pressure to create a firm or soft water pressure on different parts of the body.
There are some options available like adjustable jet direction, jet speed control and heaters to improve the bathing experience.
Water jetting will definitely offer much more of a massage feel on the different parts of the body.  Many people are concerned about bacteria build up in the water lines due to improper draining. 
There are many videos out there that show black mold riddled pipework.  This can happen if a water jetted tub is not correctly cared for, but most modern jetted tubs are built and certified to UL, cUL and ANSI specifications and are designed for a very small amount of water retention in the lines.  So long as a simple cleaning regime is followed about once per month, there should be no reason at all for mold build up in the water lines.
If you are working in the garden and have an aching back or aching feet, we would strongly advise you to consider a water jetted tub over an air jetted version.

Air Jetting

Air jetting is a very simple process.  A blower, similar to a hair dryer is employed to introduce bubbles into the water under pressure. The air introduction would normally be through individual jets or a bladder in the base of the tub.
Quite often, the blower will encompass a heater to raise the ambient air temperature at the blower intake, but the bubbles will always remain at a temperature lower than the water in a hot bath.  However, this doesn’t noticeably reduce tub water temperature over a normal bathing time.
We would suggest that air jetting is great for simply relaxing, but it is not big on massage.  The soft feel of the bubbles rolling over your skin can be very relaxing and soothing.  One very important thing is the noise level from the blower.  Some blowers actually sound a little like a jet engine, so take special care on this point.  To have a truly relaxing experience, you should really only hear the sound of the bubbles and the rippling water.
Air jetting is very simple to maintain and keep clean where individual jets are used.  Many blowers are equipped with a purge cycle that will activate a short time after the bath is finished and blow any residual water out of the jetted lines and it will blow long enough to dry the lines out completely.  If
there is no automatic purging on the blower, simply activate your blower for a few minutes after bathing.  If you use your tub for showering as well, we strongly recommend that you activate your blower to remove any residual water.  From reports we have had, bladder style jetting is more difficult to maintain as it is not always possible to remove all residual water from the bladder.

What about using bubble bath?

Bubble bath should really cause no problems at all to modern equipment on either air or water jetting.  However, if you put too much bubble bath in a water jetted tub, you will run the risk of soap bubbles being everywhere in your bathroom.  So only add a little and then a little more if needed.