Rain-barrel legality card — ask your county

There is no single U.S. rain-barrel rule. Some counties cheer barrels; some restrict cisterns or roof collection; HOAs invent their own limits. Use this card, fill the blanks, then buy hardware.

Who to call (fill in)

• County / city planning or building dept — name + phone
• Water utility or stormwater office — name + phone
• HOA / landlord — get a written answer and date it
• Cooperative Extension / Master Gardener desk — practical tips (not legal advice)

Ask them this (copy / paste)

1. Are rain barrels for garden use allowed on a residential lot my size?
2. Are cisterns or underground storage treated differently?
3. Any limit on volume, height, or screening from the street?
4. Rules about overflow onto neighbors or into the storm drain?
5. Any ban on collecting from certain roof materials?
6. Do I need a permit, backflow device, or inspection for non-potable garden use?
7. Anything about mosquito screens or standing-water codes?

Write the answers in the margin. Screenshot emails. Verbal “should be fine” is not a plan.

Build checklist (after the yes)

• Leaf screen at gutter + fine screen on barrel inlet
• First-flush idea for dirty starts after a dry spell
• Opaque / shaded barrel so algae stays down
• Spigot near bottom + hose path that does not flood the foundation
• Overflow destination you chose on purpose
• Food-grade or known-safe container for edible beds

Starter catchment frame: Rainwater for a small backyard. Cost ranges: first-year DIY vs kit estimator. Decision filter: Vs Free / Extension.

Rainwater is one piece. Storage, beds, and season extension fit better when designed together. Optional review of a structured guide:

Ask your county first. Then cut the downspout.