Design and Maintenance

Design and Maintenance

Designing of septic tank / disposal system for new dwellings.

Process undertaken
There is complete links between your empty section or drainage problem -> Quality Design -> Council Approval - > Credited installers e.g. Flow - Rite Drainage Ltd www.flo-rite.co.nz -> Ongoing yearly Maintenance Servicing Checks to ensure long life and compliance with conditions on your Council approved consent conditions.

  • 1

    Step 1

    An excavator is used on each site that needs a sewer treatment & disposal design.

  • 2

    Step 2

    Excavation of test hole to obtain true and accurate reading of soil profile and potential ground water level or potential level.

  • 4

    Step 3

    Water introduced into test hole at varying depths to record soakage rates. It is critical getting to required free draining shingle and understanding soil profile if free draining material not available. This allows for correct designing of an appropriate system for that property and correct documentation for Council approval and installation.

  • 5

    Step 4

    Recording information from test hole and relevant information about the site and surrounding area re constraints & obstacles so an accurate design can be prepared.

Maintenance servicing of Septic Tank System

Procedure:

  • 1

    Step 1

    A core sample is taken of the wastewater out of the Primary Chamber,

  • 2

    Step 2

    Core sample is measured to see how much build up of waste in Septic Tank that gets recorded, so client can be notified when system needs pumped out. Tanks should only get pump out when needed. Each pump out kills tank system until the bacteria volume grows back, so it is important to get yearly checks done and only get septic tank pumped out when needed.

  • 3

    Step 3

    Blocked up filter that needs urgent cleaning.

  • 3

    The filter is removed and cleaned into the Primary Chamber when required, Otherwise the septic tank system will block up creating blockage in drainage system to septic tank. However this filter should only be cleaned when needed as some build up of some bacteria is good to help in filtering wastewater.

  • 4

    Step 4

    The pump can get a build up of sludge over it and around the intake grate, so checking & cleaning is important.
    The pump chamber is also emptied and cleaned as required during servicing, so checking & cleaning is important.

  • 5

    Step 5

    Pump is cleaned down to remove sludge into the primary chamber.

  • 6

    Step 6

    The drill distribution pipe lines within the soakage trench are flushed until clear water runs, then pressure tested each year with levels recorded to compared from year to year of the healthy state of the disposal system.

Failure and Repair

  • 1

    Evidence of failed effluent disposal system before repairs were done.

  • 2

    Result of failed effluent disposal

  • 4

    Sludged up shingle within failed effluent disposal

  • 5

    Sludge build up in pipe work.

  • 6

    New disposal lines designed and installed

  • 3

    evidence of failed effluent disposal system before repairs were done

  • 6

    Area restored and ready for the grass to grow back after repairs were done

  • 6

    Final outcome, usable area again with good grass cover