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A problem with my pressure washer

Discussion in 'Power Washing' started by thefed, Mar 25, 2008.

  1. thefed

    thefed LawnSite Senior Member
    from Ohio
    Messages: 350

    We have a Toro ( ithink?) pw from the depot,cost about $300...nothing fancy, 2800 psi or so, 3gpm

    I can never seem to get the soap intake hose to work properly....any idea what could cause this? It worked for about 5 operating hours and nothing since

    we only do small projects as an add on...maybe 2-3 homes each season...but i;d like to get this thing working! the filter screen isnt clogged...beyond that im lost!!

    Also, i keep reading about this simple cherry product...is it available locally or do u have to order? is anything found at the home depot effective???

    S DIAMOND LawnSite Member
    from South
    Messages: 108

    A model number and make would be great.

    I don't think the Depot sales Toro marked PW, maybe Ex-cell / Devilbiss, or Porter cable? Anyway, two points of interests will be your gun, and the chemical siphon. That is, if it is a "push/pull" type lance (high-low) or removable tips? If you gun is not working in low pressure mode,then the tip/orifice (Allen screw) will need to be examined. More than likely it is going to be the chemical injector body on the pump itself.
    There is a small check valve (ball), spring, and O-ring, that allows solution to pass in "low pressure mode." The most common cause of this problem is a stuck check valve, due to accumulated soapy residue over a period of time. Also, the spring can become damaged (weaken) because of harsh chemicals, etc. The best way to avoid this, especially if it is only used so often, is to rinse the chemical injector with clean water (5-gal bucket) after each use and before storing it.:) Again, more info would be great. But access is usually just unscrewing it from the housing (barb assembly). In some causes, the whole venturi has to be removed.:waving:

    FCPWLLC LawnSite Senior Member
    Messages: 352

    Simple Cherry can only be found here..... http://www.pressuretek.com

    The mix would be for your machine... 3 gallons 12% Sodium Hypochlorite, 2 gallons water, 2 scoops of Simple Cherry.

    Down-stream this on and simply rinse off with low pressure.
  4. Barry M

    Barry M LawnSite Member
    from Indiana
    Messages: 51

    Pressuretek also sells a Hi Draw chemical injector for about $10 bucks. It might be worth buying one to see if that fixes the problem. Also get a new chem hose just in case yours has a pinhole in it, that could cause your problem also.
  5. thefed

    thefed LawnSite Senior Member
    from Ohio
    Messages: 350

    its a troy bilt unit with a 5.5 honda on it.

    it has removable tips

    i will try to take a look at this chemical injector....we'll see if i can find it!
  6. Happy Frog

    Happy Frog LawnSite Bronze Member
    Messages: 1,224

    The ball in the valve of your injector is probably sticking. This can happen if your downstreamed chlorine with it.
    When it happens, shut down your pressure washer and remove remaining high pressure by pressing the trigger on the gun. Remove the soap hose and stick a small rod in the injector barb (unfolded paper clip works good) to push on the ball (leave the water on so it will rinse the valve when the ball is pressed on). Put the hose back and try it again, it should work.
    You may eventually have to replace the O ring by a Nitrile one to prevent the ball from sticking.

    S DIAMOND LawnSite Member
    from South
    Messages: 108

    I'm not sure where the pump is located on your model, as I write this (horizontal or vertical) or what kind of space that you have (open or skirting around it), but another option might be a quick disconnect chemical siphon. The output will have to be converted, from what I'm assuming is a M22 fitting, to a male quick fitting, etc. However, this depends on the location of the original siphon, that is, if it is removable (cast or screw in) or if it can be capped.
  8. Happy Frog

    Happy Frog LawnSite Bronze Member
    Messages: 1,224

    Putting a hi-draw injector down the line (can be put on with quick disconnects and a whip line) will prevent the original injector from sucking anything so it doesn't have to be disabled.

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