For simple outdoor irrigation, document tank, overflow and maintenance.
V16 — system diagnostic
Rainwater and greywater reuse
Design collection, storage, filtration, non-potable piping and cross-connection protection for permitted uses.
Checked: 2026-08-22
Any indoor non-potable use requires clear system separation, identification and code-compliant plumbing.
Possible potable cross-connection, stagnant/contaminated water or unpermitted use: do not improvise.
Useful tools / data
- Roof/tank/overflow plan
- Potable/non-potable plumbing plan
- Maintenance program
What the professional checks
- Size storage and overflow
- Prevent cross-connections and stagnation
- Confirm permitted uses and treatment
Sources and limits
Requirements depend on location, building, product and scope. RenoAtlas helps prepare the decision; it does not replace required analysis, permits, laboratory work or professionals.
Related path
Continue with the right tools
These links connect this page to the next useful checks and decisions without repeating the full content.
Start from a symptomOrganize plausible causes, observations, urgency and the right professional.Open →Track water useCompare meter readings and flag unusual changes.Open →Review water resilienceConnect flooding, drainage and future events to building adaptations.Open →Score home resiliencePrioritize water, outages, fire, climate, health and records.Open →Plan site, drainage and utilitiesCoordinate access, water, sewer, wells, septic, grading and site constraints.Open →
V27
Project risks and overlooked interfaces
V27 connects payment, water, envelope, ventilation and jobsite details that often create costly surprises.
V28
Finish and service details to verify
V28 connects small details that become costly once finishes are closed.