What it means
The distribution box sits between the outlet pipe and the leach lines. Internal partitions or outlets aim to send equal flow to each trench so one line does not take all the effluent.
A tilted, cracked, or clogged box causes uneven loading, which saturates one trench while others dry out. Leveling and cleaning the box can extend field life when caught early.
Why it matters in Santa Cruz County
On sloped Santa Cruz County lots, distribution boxes can shift over time as soil settles, making periodic inspection worthwhile in areas like the Santa Cruz Mountains and Ben Lomond.
Homeowner tip
During inspection, confirm the D-box is level and that each outlet carries similar flow.
Related Wade's services
Related glossary terms
Also explore the Plumbing Glossary or call 831.225.4344 with questions about your property.