Field glossary

Retention

How many days of footage the system keeps, commonly 30, 60, or 90; usually set by spec, insurer, or local rule, and it multiplies the storage

Used across 2 Anvilfield field guides, most in Electrical.

Also defined as

Landscaping: Holding a permanent pool that never fully empties, which adds water-quality treatment on top of peak control

Where this shows up