wand jet sizes

[kevinj61]

how does increasing or decreasing the jet size on your wand affect pressure and gallons per minute I have a mytee M5 porty 500psi pump and a aw29 wand with 11002 jets and what is better for cleaning higher pressure or more gpm

 

[Royal Man]

If that has a pumptec to get 500 psi you'll need a total of .03

Divide 3 by the number of jets to get the optimum psi

 

[J Scott W]

In general, increasing the jet size will lower pressure while decreasing the opening on the jet will increase pressure. Rather similar to putting your thumb partially over a garden hose while spraying. Of course, the performance characteristics of the pump also come into play and limit how high the pressure or GPM can go.

Both pressure and flow rate are important. I tend to favor higher flow rate over PSI. But that can be debated. The carpet construction and types of soil can alter what works best from one job to the next. Deeper carpet pile might respond better to more pressure.

Higher flow rate can provide more thermal energy (heat, but not necessarily higher water temperature) to the fibers which helps especially with oily soils. Higher flow rates also help flush out particle soil which comprises a lot of the dirt in a carpet.

Your vacuum needs to be able to keep up with the flow rate you use or you just get the dirt wet without removing most of it.

 

[Mike Draper]

A larger water droplet will cool much slower than a small droplet. Again, this will put more thermal cleaning energy at the fiber.