Jetting 8" PVC w/ a 3000 psi 4.0 gpm washer? Homeowner questions...

Discussion in 'Drain Cleaning' started by robzr, Jul 14, 2013.

  1. robzr

    robzr New Member

    Messages:
    4
    Location:
    Portland, OR
    I have a 8" PVC drain catching water from a steep hillside here in the Pacific Northwest. Its clogged with a pretty fine silty mud that has come down the hill in the last 28 years since the drainage setup was put in place. I've managed to dig out the little pond and access an iron grate and plenum above the PVC. I can jab a home depot 1/2" steel fishtape style "drain cleaner" about 5 feet down into the mud, till I hit what I think is a bend in the pipe, where it would turn to go under my driveway (I think, I'm trying to interpret a 28 year old inspection report drawing).

    So I went out and got a used power washer (I needed one anyways). It has a 3000 psi 4.0 gpm General pump on it. I'm looking at dultmeier and amazingmachinery to piece together a jetting kit. I'm totally new to this, so here's what I'm wondering.

    Is this going to work?

    1/4" or 3/8" hose for the jetting kit? I think 50' is more than enough for where I think the clog is. Looks like the nozzle size (4.5) I need is much more readily available for 1/4" nozzles.

    Dultmeier has polyurethane/polyester fiber braid jetting hose for $28 for 50' of 1/4". Amazingmachinery has Scheifer 1/4" nylon braided hose for $57 for the same size. Is it worth the extra money? I doubt I'll use this very often, just to clean this drain and my gutters maybe.

    I can get a General pulser valve that fits my pump for $70, or a Suttner America foot valve for about the same. What's a wiser purchase? Do I need either one?

    I'd really appreciate any tips or info you guys have. I'm totally new to this, I've only been reading about jetters online for a day or so, never even seen one in person.

    Rob
  2. Part H

    Part H New Member

    Messages:
    3
    Location:
    United Kingdom
    For PVC pipe you wouldn't need that much pressure. It can easily cut holes in the pipe, which would then need to be excavated and replaced. The pipe manufacturer has a specified safe jetting pressure.
  3. Reach4

    Reach4 Well-Known Member

    Messages:
    2,644
    Location:
    IL
  4. robzr

    robzr New Member

    Messages:
    4
    Location:
    Portland, OR
    Thanks for the heads up! I just found this article: http://www.stoneagetools.com/PDF/Papers/SAFE WATERJET CLEANING OF SEWER PIPE.pdf and it sounds like they experienced issues at 2000 psi that were gone at 1500 psi. I'm going to have to crank down the pressure on my unit!

    Rob
  5. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,034
    Location:
    Cave Creek, Arizona
    The pressure is at the nozzle, once the water exits it, the pressure drops off very quickly.
Similar Threads: Jetting 3000
Forum Title Date
Drain Cleaning Stubborn Bathroom Sink Clog -- Power Jetting company or Plumber? Apr 13, 2013
Drain Cleaning Water backup into basement floor drain after jetting lateral and sanitary sewer Mar 31, 2013

Share This Page