Ds-ing with a 8gpm ds valve with 4gpm pw?

flanbo

flanbo

New member
Hey guy just picked a 4gpm pw up today while the 8gpm is being repaired. Will the 8gpm down steam valve work okay with a 4gpm machine? Any adjustment to my house mix needed? If that valve won't work I'll apply chem with a 12v pump.
 
Injectors work by creating a pressure difference between the input and the output. With a bigger orifice that the 8 gpm injectors use, it makes it very hard to get a good draw or if it will work at all. The hose alone creates back pressure which keeps the injector from drawing adequate soap. I use a 3-5 gpm injector on my 10 gpm machine just so I can get good soap with a long hose run.
 
Funny you should ask. Today I used my 4gpm machine with my 8gpm soap injector. It sucked soap about twice as fast as using it on the 8gpm machine. I was cleaning a barn with lots of spider webs and dirt so the extra soap worked great. I am not sure why it pulled more soap, I thought it may not work at all.
 
I tried it once before and it didn't work at all

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