Describe where the staining occurs
Indoor fixtures, laundry and outdoor irrigation are different scopes. Record color, timing, affected lines and whether the water changes after standing. Staining is useful evidence for the visit but cannot establish the concentration or form of iron on its own.
Test and design together
Ask which raw-water measurements support oxidation, filtration or another approach. The design can depend on pH, dissolved oxygen, competing substances and available flow. Request a treatment sequence with each stage explained and have the provider confirm the equipment specifications rather than choosing tanks by appearance.
Maintenance is part of the design
Discuss backwash, consumables and periodic performance checks before purchase. Keep raw and treated samples distinguished, especially when several lines or buildings are present. A stain-removal system should not be represented as a complete microbiological or chemical safety certification for the supply.
House, additional buildings and private-well boundaries
For a Wellington request, identify the supply serving each building before discussing equipment. A household connected to municipal water differs from a house on a private well, and a barn or irrigation line may be a separate scope. List the affected outlets and the demand the proposal is expected to serve. Do not apply a domestic equipment recommendation to animal-care or other specialist uses without the relevant professional guidance. A written line map helps the provider assess the correct project.