CALLTODD 15 Report post Posted September 27, 2008 I was thinking about getting a 8-10 gal pump. I was wondering is there some way to adjust flow if I want to tone it down? Hydo-Tek says they have adjust ability for their two gun unit.... Featuring: Rugged “Protect-It” Frame can be truck or trailer mounted or pulled/towed with the optional wheel kit Super Duty Burner System uses schedule 80 coil pipe and double wall stainless steel and ceramic insulation combined with a proven 115v oil fired burner for trouble free heating. Adjustable Flow System can be used for 2-gun operation or to conserve water Share this post Link to post Share on other sites
Russ Johnson 141 Report post Posted September 28, 2008 Hydro Tek uses a regulating unloader and smaller nozzles to choke back the flow, i.e. #9 nozzle = 8 @ 3,000, #4.5 nozzle = 4 @ 3,000. Share this post Link to post Share on other sites
One Tough Pressure 580 Report post Posted September 28, 2008 I was thinking about getting a 8-10 gal pump. I was wondering is there some way to adjust flow if I want to tone it down? Hydo-Tek says they have adjust ability for their two gun unit.... If you want to run a flow type unloader you will have to install a high pressure bypass valve aka a steam valve. It would go on the high pressure port opposite from the unloader line and bypass to the tank or back to the inlet line. The use of a smaller nozzle and a pressure gauge will dial in exactly what you are looking for. I have used mine to scale the skid down to carpet cleaning ability. Share this post Link to post Share on other sites
CALLTODD 15 Report post Posted October 2, 2008 Excellent!!! I definitely want a flow unloader... I'm new to working on these machines. I not sure where you mean by "opposite from the unloader line". I'll have to give you a call when this becomes closer to a reality. THANKS for the heads up!!!! Todd Share this post Link to post Share on other sites
John Orr 206 Report post Posted October 2, 2008 I have a Hydro-Tek 8gpm/3000 psi trailer and have been using a flow-type unloader for over 2 years. Initially, I was told that it couldn't be done with a 2 gun set-up - it can. There was also a thought that the unloader needed some "tinkering" - it doesn't. I use my rig one gun at a time (one for the surface cleaner, one to wash) with no special plumbing. The unloader has one high-pressure hose going in, one going out to the coil and a low-pressure hose to bypass. The pressure line splits after the coil and I have a chem injector on one side (though I could put one on both sides) and I downstream my housewash mix. With 8gpm, it will shoot quite high! Share this post Link to post Share on other sites
One Tough Pressure 580 Report post Posted October 2, 2008 Opposite the unloader line is the other high pressure port on the pump, they have two and one is usually capped unless you already have a steam valve. Share this post Link to post Share on other sites
CALLTODD 15 Report post Posted October 3, 2008 I think I am getting it. Unfortunately my machine is in the shop. I have a Hydro Tek 5.6 @3600psi. It claims to be a steam machine. So it probably already has the valve. And it has a gauge. Does that mean I can tip it down to reduce the flow. It came with a #5 tip for steam. THANKS, Todd Share this post Link to post Share on other sites
CALLTODD 15 Report post Posted October 3, 2008 John, Can you reduce the flow or just the pressure? Can you still run two guns at a time with the flow unloader? Share this post Link to post Share on other sites
John Orr 206 Report post Posted October 4, 2008 John,Can you reduce the flow or just the pressure? Can you still run two guns at a time with the flow unloader? I can do both...at the same time by adjusting the unloader (which I do sometimes to use a lower psi/gpm turbo nozzle) or just the gpm by using a smaller (less than 9.0) tip. I can, and sometimes do, run 2 guns at the same time - or 1 gun and a surface cleaner. Most of the time, If I need a second gun, I roll out the portable that I keep in my van - I hate giving up the gpm's on the surface cleaner. For example, I have a 9 hour driveway cleaning coming up next week and I'll run the 8 gpm with a Big Guy with 4.5 tips and the 5 gpm with a Big Guy with 2.5 tips. If I wanted, I could run both BG's with 2.5's, but the distances involved would require way too much hose (long winding drive to get to the house/parking area. Share this post Link to post Share on other sites
CALLTODD 15 Report post Posted October 4, 2008 (edited) I can do both...at the same time by adjusting the unloader (which I do sometimes to use a lower psi/gpm turbo nozzle) or just the gpm by using a smaller (less than 9.0) tip. Looks like I'm going with the General tsf2021 8.5 gals per min @1750 rpm with a k-10 unloader. Then I should be able to adjust the unloader down to 6 gals per min at 3600 psi for house washes and tip it back up to 8.5 for concrete etc. Edited November 3, 2008 by calltodd sounds neg Share this post Link to post Share on other sites
