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Leaf Vac Hose Suction Loss Length?

Discussion in 'Lawn Mowing' started by Bel Air Bob, Nov 10, 2006.

  1. Bel Air Bob

    Bel Air Bob LawnSite Member
    Messages: 84

    How long of a hose can I use effectively without losing much suction on an 8 in. diameter hose from a TracVac 11HP hitch mount unit? I have the standard 12 ft. came w it and works fine, but by the time u get turned 90 degrees and to the side of truck, there's not much hose left to suck up leaves. I mean, I have to blow most of my leaves all the way to the curb. I could save some time if I had longer hose, maybe 25-30, even 50 ft, but don't want to spend small fortune on hose only to find I lose too much suction. Any advice? How long has anyone run 8 inch hose from 11HP unit and still had good suction? This hose is too expensive to buy and guess. Why I'm on the topic, anyone know a good source for hose 8 inch diameter? I found sources from $15 to $25 (plus high S&H) per foot. I'd love to pick up a used one.
  2. Uranus

    Uranus LawnSite Bronze Member
    from Mass
    Messages: 1,624

    :laugh: DUDE YOUR FUNNY! 50 feet of house. What are you nuts? Be like evryone else and live with blowing them to the curb. Whats next sucking them out of the beds into the truck
  3. Scotts' Yard Care

    Scotts' Yard Care LawnSite Senior Member
    Messages: 343

    Any chance of finding cheaper alternatives to try? You might fab in a section of thin wall metal or flexible drain hose which shouldn't be too expensive. May be other alternatives you can think of:)
  4. huh

    huh LawnSite Senior Member
    from Lubbock
    Messages: 251


    search "air suction hose friction loss" in yahoo.....maybe change up the terms a bit

    the link above is for water, but it should give you some help....call the company and ask them the friction of the hoses for air

    a lot of companies advertise "low friction loss"....there is a lot of info out there for shop dust handlers, but they are all using much smaller dia. pipe

    one thing i did pick up is that you might consider non-flex hose for a really long run.....but connections can give friction loss as well....also it seams there is more friction on the horizontal than the vertical movement if I read correctly....things to consider

    I would be interested to see what you come up with :)
  5. grass-scapes

    grass-scapes LawnSite Bronze Member
    Messages: 1,552

    the longer you go, the smaller the end will have to be to keep the suction. Add another 12 foot section to it and see what it does. if it doesnt help, you can always keep it as a spare, or sell it on ebay.
  6. gene gls

    gene gls LawnSite Gold Member
    Messages: 3,213

    The longer the hose the faster it will clog with "fine" particals that settle in the bottom of the hose.
  7. JJLandscapes

    JJLandscapes LawnSite Senior Member
    Messages: 682

    hopefully yes we can suck them out the beds lol put a 50hp engine or whatever needs to be done lol

    imagine a lawn vaccum hooked up to a hose not that would be heaven
  8. cantoo

    cantoo LawnSite Silver Member
    Messages: 2,910

    It would be easier to remount your vac so the hose sticks out the side instead of the front. I have no idea why people mount them pointing straight ahead when most of the time they blow to the curb for pickup. I have mine mounted on the right side of my front bumper but pointing ahead because we drive up to the piles or row.
  9. Oxmow

    Oxmow LawnSite Senior Member
    Messages: 485

    I have used a Little Wonder 11 hp walk behind leaf blower with the vacuum attachment for about7-8 years now. I have it mounted on the front right of my dump bed on my dump truck. I have used up to 25 feet of 6" vinyl externally ribbed suction hose. Works like a charm. Pull up to the curb and dump the leaves next to the truck.
  10. Bel Air Bob

    Bel Air Bob LawnSite Member
    Messages: 84

    What's the longest hose you've used in 8"? anybody?

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