Rainwater laws / Florida

Is it legal to collect rainwater in Florida?

Checked at Florida's own statutes and agencies, November 2026. Not legal advice.

Allowed; plumbing rules for indoor use

Yes. Florida needs no permit for household water use, and its plumbing code covers rainwater systems for irrigation, car washing and, in some places, toilets.

What the rules say

  • Florida Statutes 373.219(1): "no permit shall be required for domestic consumption of water by individual users."
  • EPA: the Florida Plumbing Code chapter 13 allows harvested rainwater for irrigation, car washing, pools and fountains, and toilets where the local jurisdiction allows.

Before you buy a big tank

State law is only one layer. Cities and counties can set their own rules, especially for tanks plumbed into the house, and an HOA can limit where a barrel sits. Drinking rainwater needs treatment everywhere. For a barrel or two on a downspout for the garden, the state rule above is usually the one that matters.

See how many gallons your roof collects.

Where the numbers come from

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