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Electric Back Pack Sprayer?????

Discussion in 'Pesticide & Herbicide Application' started by Ric, May 3, 2008.

  1. PHS

    PHS LawnSite Senior Member
    Messages: 724

    Az, I duplicated your design on a sprayer from a picture you posted once. It works pretty well for spraying shrubs and small trees. I'd have to go look but I think the pump I used is rated for 1 gpm/65psi. I've got another BP I want to convert for spot spraying and I think I'll use a smaller pump for that.
  2. humble1

    humble1 LawnSite Silver Member
    from MA
    Messages: 2,519

    fastpac here kicks ass, adj gun for fine mist, or stream can hit a bee nest 20ft up puts a gallon out in like 45 seconds
  3. ArizPestWeed

    ArizPestWeed LawnSite Bronze Member
    Messages: 1,457

    Good , happy it worked for you .
    Did you use a BP with out a manual pump ??
    You can get them from SP , called a "gravity flo "
  4. PHS

    PHS LawnSite Senior Member
    Messages: 724

    The BP I used had a regular piston pump on it. I removed the pump and with a hacksaw and dremel tool I carefully cut the pressure reservoir off to expose the drain hole. Then connected up the plumbing. The gravity flo set-up sounds much easier :).
  5. Ric

    Ric LawnSite Fanatic
    Messages: 11,969

    Actually you have me very worried about the Pump Wars, I like my job but I don't want to die for it.

    If your home made design doesn't go to War, I wouldn't mind if you posted a link to the pictures etc. I always like new Ideas, in fact I was going to build a roll around spot sprayer out of parts I already have. Sometimes these home builds cost more and work less effect.

    As for low end equipment not being repairable, sad to say this is a throw away world.

    Bug Guy

    Good point about batteries. Their life is very depended on charging properly.


    I will check out your suggestion also. I have about 5 more weeks of our dry season and can do very little weed control at this time.
  6. gregory

    gregory LawnSite Bronze Member
    Messages: 1,081

    this is south florida going outside makes you sweat alot...
  7. ArizPestWeed

    ArizPestWeed LawnSite Bronze Member
    Messages: 1,457

    Even in Arizona we sweat too.
  8. Az Gardener

    Az Gardener LawnSite Gold Member
    Messages: 3,899

    Hey neighbor where is the link to the DIY model? Sounds interesting. I am a tight wad, I have some bad backpacks laying around and both my father-in-law and son are tinkerer/ pert time inventors. Sounds right up my allay.
  9. ATVracer

    ATVracer LawnSite Senior Member
    from Indiana
    Messages: 346

    I ended up doing the same thing PHS did. I called Swissmex(SP) about getting some gravity flow tanks & they told me they no longer had them in stock.
  10. americanlawn

    americanlawn LawnSite Fanatic
    from midwest
    Messages: 5,954

    Hi Ric -- you won't go wrong with the Shurflo SRS 600. We've used them for two years now (we formerly used Shindaiwa hand pump backpacks). We use the blue flat fan nozzle in all of them. Specs say they can spray up to 120 gallons on a single charge, but we charge the batteries every weekend (just once a week). The spray gun that comes with them usually shells out within a season, so we upgraded to a TeeJet gun on all of ours. Once in a while the tiny fuse will blow, and every so often the pump might need repaired (both minor expenses). We won't use any other brand. I often carry up to four of these in my truck (Roundup, BWC, Q4, brush killer). Now my guys actually spot spray like they should (compared to before). It's a fine unit. Less than $200 on ebay including shipping.

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