we have the Turbo twisters and 1 steel eagle 30 inch.
we have 3 wand attachment running 6 GPM's through it at 0 degrees with 4,000 psi. Deublin swivel.
The turbo's clean twice as good and 1/4 faster.
We are very pleased with the steel Eagle.
I have tried a side by side comparison with Hydro Tek and Steel Eagle on our machine. On our rig, we set the Same settings, Same pumps, with different swivels. Hydro Tek VS Steel Eagle. The Steal Eagle out performed the hydro tek, of which I though the hydro tek was a better design. I believe that the swivels make all the difference in the world. We use nothing but the deublin swivels on ALL of our surface cleaners.
Just a note, I would order the 3 wand for the 6GPM and the 4 wand for the 8 GPM.
If you have less than 4,500 PSI, I believe that you would need to compensate for the lower psi by raising your GPM's. If you have a lower GPM, raise your PSI to at least 4,000.
Another trick is Volume resistance.
If you have a 3/8 hose, you will have three times the resistance as a 1/2 hose. If your hose is 200 ft, well you may have to get a much higher volume pump than a 6 GPM. It seems that everyone like the general 8 GPM at 3,500 psi. when running through a 3/8 inch hose line.
We use a 1/2 inch line at 200 ft with only 50 to 90 psi loss, instead of up to a 300-400 psi loss with a 3/8 inch line. This also makes a difference with the performance with a NON motorized surface cleaner.
So to recap...
PSI needs to be increased for lack of GPM
GPM needs to be increased for lack of PSI
3/8 hose will restrict noticeable flow and pressure past 50 ft. It is harder on your pump with great distance than 150 ft.
1/2 hose is easier on pumps, Better Flow and performance.
Draw back on 1/2 inch.... It's a B**ch to handle, wind. Our 1/2 inch hose cost $3.80 per ft. . Multiplied by 200 ft. on each reel. We have 700 ft on the rig or $2,879.45 with tax.... No delivery charge included. we go through hoses every 4 months more or less. We allocate as much as $9,000 per year, or $725 per month towards hoses.