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? on a problem w/ECHO ms50 backpak sprayer

Discussion in 'Mechanic and Repair' started by GarPA, Oct 2, 2004.

  1. GarPA

    GarPA LawnSite Silver Member
    from PA
    Messages: 2,585

    this is the big 5 gal sprayer. We use it only for fertilizing large flower displays.
    It has a problem where we have to constantly pump the handle and to get any pressure but no pressure seems to build up in the tank. So I look in the manual and it says there may be a problem in the tube/syphon pump and they say to unscrew the top of the syphon pump where the hose goes into it as there may be a problem with the float being stuck inside the syphon (or whaterver its called). I tried to unscrew the top off but I can't even see a hairline crack where this thing would unscrew. Plues its a bear to get a good grip on it and I dont want to use vice grips as I might crack it. It looks like its sealed but I cant see where else you could get inside to check the float ball. I've never had to work on these things so I dont know what I'm doing ....obviously.
    Any help/advice on getting this thing apart would be appreciated or if you could tell me if you've had a similar problem and how you fixed it.
    BTW, the gasket and check valve are oiled so I doubt thats the problem...thanks for your help

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