San Antonio vs Universal City
How do rainwater harvesting rules compare between San Antonio, TX and Universal City, TX?
San Antonio and Universal City have similar restriction levels.
San Antonio, TX
Bexar County
San Antonio actively encourages rainwater harvesting through SAWS (San Antonio Water System) rebate programs. SAWS offers $1.00 per gallon of storage up to $2,000 for residential customers who install at least 500 gallons of cistern capacity. Collected rainwater must be used for non-potable purposes like landscape irrigation. Texas state law (TX Tax Code § 151.355) exempts rainwater harvesting equipment from sales tax.
View full San Antonio rules →Universal City, TX
Bexar County
Texas Property Code 202.007 preempts HOAs from banning rainwater harvesting systems, and Universal City does not restrict residential rain barrels. SAWS offers rebates for qualifying rainwater systems.
View full Universal City rules →Key Facts Comparison
| Fact | San Antonio | Universal City |
|---|---|---|
| SAWS Rebate | $1/gallon of storage, up to $2,000 | - |
| Minimum Size | 500 gallons of storage to qualify | - |
| Use | Non-potable only (landscape watering) | - |
| State Tax | Equipment exempt from TX sales tax | - |
| Workshops | Free quarterly cistern workshops from SAWS | - |
| State law | - | TX Property Code 202.007 |
| HOA ban | - | Preempted |
| City permit rain barrel | - | Not required |
| Sales tax exemption | - | TX Tax Code 151.355 |
| SAWS rebate | - | Available for qualifying systems |
Highlighted rows indicate differences between cities.
San Antonio FAQ
Does San Antonio offer incentives for rainwater collection?
Yes. SAWS provides a rebate of $1.00 per gallon of storage capacity, up to $2,000, for residential customers who install at least 500 gallons. SAWS also offers free quarterly workshops on cistern installation and use.
Can I use collected rainwater for drinking?
The SAWS rebate program requires that cistern water be used exclusively for non-potable purposes like landscape irrigation. Adjacent landscaping must survive on natural rainfall and stored water only — potable water backup is not permitted under the program.
Universal City FAQ
Can my HOA stop me from installing a rain barrel?
No. State law preempts outright bans, though the HOA may require screening from street view.
Can I drink harvested rainwater?
Indoor potable use requires proper filtration, disinfection, and plumbing permits; most homeowners use it only for irrigation.
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