I tapped the ends of the hose barbs to be able to use the screw in metering tips from the Dultmeier stainless/kynar injector. For anyone interested, it’s an 8-32 thread.
I was PM’d for a parts list.
Unfortunately, I can’t give exact model numbers and such, since I opted for some low pressure fittings for the sake of expediency and convenience, and I know for a fact that high pressure tips will never go in this gun. But that’s not a ‘best practice’ by any stretch.
Also, I have this mystery injector that happened to have 1/8” threads. It might be a JE Adams 10% fixed injector? I think it would be much more preferable to find the correct adapter for the soap inlets on the standard injectors.
For my gun, I used:
•(2) 1/4” fpt x 3/8” fpt adapter couplers
•10” x 1/4” stainless nipple
•1/4” fpt x female pressure coupler (stainless)
•1/4” fpt 3-way PVC ball valve (MFR #: 6900190)
•(2) 1/4” mpt x 1/4” barb elbows (Banjo MFR #: HB025-90)
•1/4” mpt x 1/8” mpt adapter nipple (substitute this part for whatever thread is on the injector of your choosing
An 8-32 thread tap was used on the hose barb ends to allow the use of screw in metering tips:
Dultmeier seems to have the best prices on pressure-rated fittings. You may have to go to Zoro for the PVC 3-way and a couple other items, though.
So, I was afraid this was going to be an issue.
First test was an utter failure. Water spraying out of the draw tube. Apparently, 1/8” is just too big an orifice (at least for the design of this particular injector).
For those curious to know, I used this injector previously as a back-pressure orifice on the bypass side of my k5 injector. That’s why it was drilled out to 1/8”.
Basically, a two step xjet, with somewhat lower pressure, if possible. I don’t need the high draw ratio of an xjet for my application.
I need to find a way to adapt to the inlet of a standard injector, though.
I have a couple spare orifices, so I can experiment a bit with different size openings. I want to draw chem at the lowest possible pressure, using my housewash tips.
Edit: I guess I could accomplish all of this with my actual xjet, since I know it has standard threads on the inlet.
What I really want is something where everything is screwed together and fixed in place, so I don’t have to use both hands to switch from soap 1, to rinse, to soap 2, back to rinse.
So an actual 2 step gun is to much psi then @Infinity .
I’m understanding now man.
Dont wanna go blasting through windows and caulking etc,etc.
Why soap, rinse, soap rinse?
We soap, soap, rinse.
I figured the bleach + acid thing was a bad idea…
You rubber scrubbers don’t use bleach in your caustic soap mix, huh?
Ha !! No sir we do not.
Ok I’m still confused on what you are planning on using it on and also how are you going to carry 2 bucks and the gun at the same time. Also what are you going to use it on.
Are you referring to me?
I’m using it on the job discussed here:
Buckets go up in the lift with me.
Ok I see
Got it adapted to a regular injector.
Made a bushing by hacking the end off of the original hose barb, and tapping an 1/8” npt thread inside of it.
You’re the son I never had
How do you keep it from back feeding
Center position on the 3-way valve turns it off completely.
Will it hold the pressure? That’s awesome
I will only use low pressure (house wash) tips with this gun. So it will never have any pressure on the soap inlet.
You are going to hate that 3 way ball valve in no time at all. Make sure you have a couple up in the bucket with you in case it breaks. Here is another one that works great but it doesn’t have an off position
https://www.amazon.com/gp/product/B00QB1GU88/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1