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When designing a septic dispersal field (via sub-surface dripline), can it be harmful for the field to be much larger than required? E.g. not getting enough wastewater through to keep the drippers clear.

Our current (failed after 7 years) field was sized based on generous water usage, and double the actual house occupancy, and I'm wondering if this could be a factor in the failure.

  • what is the reason for failure? – jsotola Jan 11 at 1:54
  • I don't know in detail, other than the dispersal field is blocked, and the plumber hasn't been able to clear it with flushing and chlorine dosing. – Simon Hardman Jan 11 at 2:51
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    perhaps you have problems with roots – jsotola Jan 11 at 5:01

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