Chemical Injector problem

[map_911 14]

My chemical injector is not working properly, I haven't used it in some time because of X-jetting so I took it apart and cleaned it and the ball was stuck and figured that was the problem. When I started up I just used supply hose presure to see if the soap was flowing and it worked perfect. Started up the washer and nothing, I took the injector hose off and pushed down on the ball with a pick and the gun on and water shot out the barb. There was no suction from the barb at all, I'm sure its something meaningless and it's probably in the archives here somewhere but can anyone give me a clue. :o

Thanks for the help

[Guy B 70]

No disrespect, but did you check to make sure DS'er is not installed backwards?

[Rick2 42]

That would be my guess.

[map_911 14]

When I bought this 3 years ago I used it a few times until I got the X-jet, so it hasn't been move since until I took it off and cleaned it. I just read up on an old post and I am using another gun that I purchased this fall and believe this could be the problem according to what was pointed out from others. It works with out the pressure washer on and I even took off the chem tip as it is running to see if it made a difference. Also pulled the hose off the outlet (washer off) and nothing.

appreciate any proposals

[Chris Tharpe 40]

the o-ring could possibly be damaged or deteriorated.

[map_911 14]

I'll recheck the direction and look at the ball and spring again.

[Thad 135]

Couple of things-

Check the direction. It's easy to put one on backwards. Don't ask me how I know.

Hose length matters. The longer the hose the less the draw.

What GPM is your gun? I use a 13 GPM Suttner.

Bob at Pressure Tek modifies a ball-less injector that lasts a lot longer than a standard Hi Draw.

[Pat Norman 18]

Couple of things-

Check the direction. It's easy to put one on backwards. Don't ask me how I know.

Hose length matters. The longer the hose the less the draw.

What GPM is your gun? I use a 13 GPM Suttner.

Bob at Pressure Tek modifies a ball-less injector that lasts a lot longer than a standard Hi Draw.

+1 on what Thad says but the Pressure Teks special injector has the ball just does not have the spring except has a star washer to keep the port open and ball from closing the bottom port. Like Chris said sometimes the small O ring that the ball seats on goes bad and the ball will stick hard to it. I've had good luck with all my injectors and spares after taking a diagonal wire cutter and cutting off about 1/4 or so of the spring in the check valve. High pressure is going to slam the ball on the check valve shut anyway, I just want to be sure it opens up easily, the real purpose of the spring is to keep the ball from closing the port or hole on the main body of the injector and give the chem an open path around the ball.

[Thad 135]

I meant spring.

Ugh.

Thanks for catching my slack, Pat!

[DAVID V 22]

Also check your the feed line for holes. Mine had a pin hole in it and wouldn't draw.

[CCPC 26]

Injectors are cheap. Just buy a new one and be done with it.

[CALLTODD 15]

My injector blows the orings so I keep buying rebuild kits for it, but all I really need is the oring.

Does anyone know the size or where to buy them.

[JohnB 14]

Mine that came with the pressure pro machine quit after using it two times in one week.. I think I will just stick with a pump up sprayer ... It has proven to be more reliable and this way chems will not tear up my hose..

Edited February 24, 2010 by JohnB

[John Orr 206]

The best way to make your ds'er and hoses last is to run water through the pick-up after each use. Doing this will also clear the hose quicker, allowing for faster rinsing.

[Paul Kassander 26]

If it is installed in the correct direction you can also check the injector orifice. IF some debris became lodged in the chamber or if the orifice backed out that can make the injector stop working as well. They usually come out with a Allen wrench or Flathead screwdriver. Just remove it clean the chamber and reinstall tight.

[CALLTODD 15]

I probably don't run clear water through the injector often enough. I'll work on that.

But I really do loose the oring. I'm running almost straight 12.5% and 1 or 2 steppeng trucks.

Anyone selling just the oring??? By the way it is a Super Suds Sucker, and when it works, it works.

Edited February 25, 2010 by calltodd
spelling

[CALLTODD 15]

#9 oring from the hardware store has been working fine.

Edited June 6, 2010 by calltodd

[cleanhoods 43]

Also check to see if your orfice size is the right one for your machine.

I agree for my line of work i would rather use a sprayer then a DS less problems and less things to go wrong and or damage.

Marko

[Douglas Hicks 128]

I probably don't run clear water through the injector often enough. I'll work on that.

But I really do loose the oring. I'm running almost straight 12.5% and 1 or 2 steppeng trucks.

Anyone selling just the oring??? By the way it is a Super Suds Sucker, and when it works, it works.

Get a 5 gallon bucket, filled w/clean water. Drop the chemical hose in the bucket and put a clamp on the gun. run the pump while rolling up your supply hose. I have used the same ds for several months now.

[CALLTODD 15]

Thanks for all the good advice. Been running water thru the injector at the end of the day, haven't blown any more o rings since. I usually take the gun off and just let the hose run so I can run down the tank.

As for the orifice, I am probably running a 3, but I have a 4 on it's way..........

Todd