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Thread: 5 Gpm vs. 8 Gpm injectors

  1. #1

    5 Gpm vs. 8 Gpm injectors

    Why is it that a 5 gpm machine injects better than an 8 gpm machine? I have used Bob's modified injectors for years on 4 - 5.5 gpm machine's and they pull through 200' + of hose. The 8 gpm can't match in with a 3-5 or a 5-8 gpm downstream injector.
    Alabama Pro Wash
    Tuscaloosa,Alabama
    http://www.roofcleaningalabama.com/
    205-799-9069
    EMAIL: andy@alabamaprowash.com
    http://youtu.be/kyqjMWcA1hg

  2. #2
    I like no injector at all when rinsing, but to answere your question IMO its just a matter of having more water with the 8 gpm machine diluting the soap to weaker mixture.

  3. #3
    Full Member Ultimate House Wash's Avatar
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    I'm pulling suds using a 3-5 injector on a 8gpm through 300' no problems.
    John Marston - Managing Member
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  4. #4
    My 8GPM was soooo disappointing when i got it trying to pull soap through 250'....... I had to go a different injector route...... I now push copious amounts of soap... Never knew about Bobs modified injectors until last week..
    Matt Goin
    President
    Grass Butler Lawn Maintenance
    Wash Butler Pressure Washing
    www.grassbutler.com
    www.washbutler.com

  5. #5
    Quote Originally Posted by GrassButler View Post
    My 8GPM was soooo disappointing when i got it trying to pull soap through 250'....... I had to go a different injector route...... I now push copious amounts of soap... Never knew about Bobs modified injectors until last week..
    I need to figure something out. i wanted the 8 for rinsing purposes.
    Alabama Pro Wash
    Tuscaloosa,Alabama
    http://www.roofcleaningalabama.com/
    205-799-9069
    EMAIL: andy@alabamaprowash.com
    http://youtu.be/kyqjMWcA1hg

  6. #6
    what kinda machine is your 8GPM?
    Matt Goin
    President
    Grass Butler Lawn Maintenance
    Wash Butler Pressure Washing
    www.grassbutler.com
    www.washbutler.com

  7. #7
    BE cold water, truckmount,24hp Honda,Comet pump with dual outlets but I only use one
    Alabama Pro Wash
    Tuscaloosa,Alabama
    http://www.roofcleaningalabama.com/
    205-799-9069
    EMAIL: andy@alabamaprowash.com
    http://youtu.be/kyqjMWcA1hg

  8. #8
    Put a super sucker on their, I here Bobs modified might be as good wich I will be trying asp, and Im sure it will pull suds, then if you want full rinsing effect, either take the injector off when rinsing or rig something up to by pass the injector with a ball valve when its time to rinse.

  9. #9

  10. #10

    5 Gpm vs. 8 Gpm injectors

    Super Suds Sucker #3 nozzle. ( it comes with 1,2,3,4 sized) You may need to go to #15 size rinse nozzles to cut off the soap. I had to switch to 2515 and oo15 I think. I run a pressure pro 8gpm 3000. I also use a 3 way valve plumbed from my buffer tank and HW tank to the injector. Attachment 27061So I can rinse with soap nozzles ( I love my 0540)
    I just found out about bobs modified injector last week. So I may try one in the future.
    Matt Goin
    President
    Grass Butler Lawn Maintenance
    Wash Butler Pressure Washing
    www.grassbutler.com
    www.washbutler.com

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