drainage questions

Discussion in 'Drain Cleaning' started by newbee2010, Jul 2, 2010.

  1. newbee2010

    newbee2010 New Member

    Messages:
    3
    Location:
    USA
    Hi,

    We have a cleanout pit in the frontyard and it slightly overflowed with sewege.
    I used the bladder bag connected to water hose for 5min and it seems to help.

    The pit is vertically 4 feet deep and seems to slant towards street for about half a foot.
    From the top, I can always see the sewage standing for about 3.5 feet.
    When someone flushes the toilet, it rises slowly a few inches and then drops back.
    Is this normal? Should I put the bladder bag for a longer duration?

    Thanks very much
  2. Terry

    Terry Administrator Staff Member

    Messages:
    15,156
    Location:
    Bothell, Washington
    Normally you have a 4" line running to the street.
    A garden hose isn't going to help if you have roots in the line.
    Does this have a line to a public sewer, or do you have your own drain field?
  3. newbee2010

    newbee2010 New Member

    Messages:
    3
    Location:
    USA
    The pit is about 5 ft away from the street.
    There might be roots or misaligned pipes because it is an old home.
    It goes to the public sewer.
    What else can we do before having to do a major pipe replacement?

    Thanks very much
  4. cacher_chick

    cacher_chick Test, Don't Guess!

    Messages:
    3,250
    Location:
    Land of Cheese
    First call the city utility to check to see if perhaps THEIR line is backing up.
    If not, then your line needs to be rodded out with a proper machine, which would be a good job for a plumber or drain specialist.
  5. newbee2010

    newbee2010 New Member

    Messages:
    3
    Location:
    USA
    I had called the city but by the time I reached home, he had left.
    My wife said he started some machine and tried to push something and it had blades like a kitchen mixer.
    He could push deeper because something blocked the tool. Then he suggested to try the water bag and left.
    Right now there is no problem.
    I am just curious why there is standing water in the pit which goes up and down.

    Thanks very much
  6. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,882
    Location:
    Cave Creek, Arizona
    IF he had the right equipment, AND KNEW HOW TO USE IT, then he should have unplugged the line. IF there is really a problem with the line so that it cannot be cleared a "blow bag" is NOT going to make it better or cure it. There is water in the pipe because the pipe is obstructed.
  7. MACPLUMB 777

    MACPLUMB 777 TROJAN WORLDWIDE SALES RP

    Messages:
    679
    Location:
    Houston, Texas, United States
    To put into plain english !

    You " should" "not " see any water setting in the clean out pipe !

    Only such water running by as water running inside the house at that time ! ! !

    You need to call a professional to clear your blockage all you are doing is blowing a

    little hole in the blockage that stops back up anytime solid waste comes down !
  8. bettlermark

    bettlermark New Member

    Messages:
    1
    Location:
    lhr
    Why not just use a traditional French drain?

    Multi-Flow is a modified and improved French drain. Multi-Flow, employing Narrow Trench Installation Technology (NTITâ„¢), has several important advantages over an old-fashioned French drain
  9. Jerome2877

    Jerome2877 In the Trades

    Messages:
    397
    Location:
    BC
    This is a sewer!
  10. Ian Gills

    Ian Gills Senior Robin Hood Guy

    Messages:
    2,777
    Location:
    USA
    I wished I lived in a city that would send someone round to clean their section of the drain WITHOUT needing to see a receipt that I had my 4 inch+ section rodded first with a machine that met their minimum specifications.

    Are you sure you don't live somewhere more civilized like Canada?
  11. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,882
    Location:
    Cave Creek, Arizona
    This city WILL check their manholes, but prefer that a plumber be the one to request it, since they know what they are doing and should not make a spurious request.
  12. Thatguy

    Thatguy Homeowner

    Messages:
    1,459
    Location:
    MD
    A toilet flush is 1.6 gals or 3.5 gals? The "drop-back time" gives you your drainage rate in gals/min.
    There are tables of pipe size vs. flow rate vs. length against which you can compare your rate.
    http://www.engineeringtoolbox.com/sewer-pipes-capacity-d_478.html
    Last edited: Sep 26, 2010
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