In Asheville rain catchment systems are a popular and eco-friendly way to capture and use rainwater- primarily for irrigation. The main advantages are that the water doesn’t contain chorine/fluorine added by county treatment plants and the homeowner can reduce their public water consumption and expenses.
Unfortunately most of the installations that I see while performing home inspections in the Asheville area are defective and can, if left un-repaired over many years, cause structural issues, water penetration, mold, rot, and air quality issues in the crawl space/basement. Before installing a rain catchment system homeowners should understand that they are modifying important components of the house drainage system- the downspouts and sub-surface drains- which are designed to protect the home from water damage. It’s not enough to run downspouts into a barrel because they will inevitably overflow during big rain events. Improperly installed systems will negate any water savings by causing expensive foundation repairs which is why a licensed landscaper and/or a rain catchment specialist should install these systems. Owners of these catchment systems should budget for regular maintenance and repairs and they should inform gardeners/maintenance workers, and renters/occupants about how the system works so they don’t move or damage the components.
The picture was taken at the Asheville Earth Fare at the Westgate Mall (a local institution and one of my family’s favorites).