Florida law (FS 373.62) requires all new or replaced toilets in FL to use ≤1.28 gpf (gallons per flush). Older 3.5 gpf and 1.6 gpf toilets are still legal to keep in place, but cannot be re-installed after removal. This applies statewide to all residential and commercial properties.
WaterSense-labeled toilets (EPA program) use ≤1.28 gpf and qualify for FL utility rebates. Look for the blue WaterSense label — it guarantees performance and water savings. WaterSense models must pass rigorous flush performance testing (MaP score 350+ grams), so you're not sacrificing flush power for efficiency. Most FL plumbers stock WaterSense models as their standard offering.
| Toilet Type | GPF | FL Rebate? | Hard Water Grade | Best For | Installed Cost |
|---|---|---|---|---|---|
| Standard 1.28 gpf Gravity-flush, vitreous china |
1.28 | ✓ Yes | A — Excellent | Most FL homes, budget-conscious, rental properties | $250–$450 |
| Comfort Height (ADA) 17–19" seat height |
1.28 | ✓ Yes | A — Excellent | Aging-in-place, ADA compliance, taller users | $300–$550 |
| Dual-Flush Two-button: 0.8 / 1.28 gpf |
0.8 / 1.28 | ✓ Yes | B — Clean Rim Frequently | Maximum water conservation, eco-conscious households | $350–$600 |
| Smart Toilet / Bidet Combo Heated seat, wash, dry functions |
Varies (most 1.28) | If WaterSense certified | C — Needs Water Filter | Luxury upgrades, tech-forward homeowners | $800–$2,200 |
| Pressure-Assist Compressed air boosts flush |
1.28 | ✓ Yes | A — Excellent | Chronic cloggers, long horizontal runs, low water pressure | $350–$650 |
| Commercial / Heavy Duty Elongated, reinforced construction |
1.28–1.6 | Varies by gpf | A — Excellent | Short-term rentals, multi-family, AirBnB properties | $450–$900 |
| Utility / Water District | Rebate Amount | Requirement | Coverage Area |
|---|---|---|---|
| SFWMD South FL Water Mgmt District |
$50–$100/toilet | WaterSense certified, ≤1.28 gpf | Miami-Dade, Broward, Palm Beach, Martin, St. Lucie, Okeechobee, Hendry, Collier, Lee, Charlotte |
| JEA Jacksonville Electric Authority |
$50–$125/toilet | WaterSense label required | Jacksonville, Duval County and surrounding service territory |
| TECO / Peoples Gas Tampa Electric service area |
$50/toilet | WaterSense label required | Hillsborough County, portions of Polk County |
| OUC Orlando Utilities Commission |
$50/toilet | WaterSense label required | Orange County, Orlando metro area |
| St. Johns River WMD | $50/toilet | WaterSense ≤1.28 gpf | NE and Central FL — 18-county region incl. Seminole, Volusia, Brevard |
| Pinellas County Utilities | $50–$75/toilet | WaterSense label, 1.28 gpf max | Pinellas County (St. Petersburg, Clearwater, Largo area) |
| FPUA Fort Pierce Utilities |
$50/toilet | WaterSense certified | Fort Pierce, St. Lucie County |
| ⚠️ Always Verify First | Call before you buy | Rebates change annually — funds can run out mid-year | Ask your FL licensed plumber — they track active rebate programs and can often submit the form for you |
| Symptom | Repair Cost | Replace Cost | FL Recommendation |
|---|---|---|---|
| Worn / degraded flapper (running water sound) | $15–$50 | $250–$600 | Repair — unless toilet is 15+ years old or 3.5 gpf |
| Cracked tank or bowl (any visible crack) | Not safely repairable | $250–$600 | Replace immediately — cracks worsen, risk of sudden failure and flooding |
| Rocking or loose base | $75–$150 (re-set and re-seal) | $250–$600 | Repair if porcelain is intact — rocking indicates a bad wax ring or loose floor bolts, not a failed toilet |
| Chronic clogs (3+ times per year) | $150–$400 (camera + clear) | $350–$650 (pressure-assist) | Camera sewer line first — problem may be root intrusion or belly in drain, not the toilet |
| Constantly running water (fill valve) | $30–$100 (fill valve kit) | $250–$600 | Repair — unless toilet is 15+ years old. FL hard water degrades fill valves every 3–5 years. |
| Hairline cracks in porcelain (any location) | Not safely repairable | $250–$600 | Replace — hairline cracks propagate quickly and risk catastrophic failure without warning |
| Severely stained bowl (iron / hard water) | $75–$200 (acid descaling) | $250–$600 | Try acid descaling first — CLR or Lime-A-Way treatments can restore badly stained bowls |
| Pre-1994 toilet (3.5 gpf) — any condition | Not applicable | $250–$600 | Replace — saves $80–$150/year in water, may qualify for FL rebate, eliminates aging parts |
| 1994–2005 toilet (1.6 gpf) with repeated repairs | $30–$150 (depends on issue) | $250–$600 | Evaluate — if repairs exceed $150/year or toilet is in poor cosmetic condition, replacement makes sense |
An improperly installed wax ring or supply line connection is the #1 cause of bathroom water damage in Florida. Slow leaks under the wax ring can go undetected for months, silently rotting the subfloor — repairs can exceed $5,000 when the subfloor and tile must be replaced. Always use a licensed FL plumber with a valid CFC (Certified Florida Contractor) plumbing license for toilet replacement. Improper installation voids homeowner's insurance in many FL policies. Verify the license at MyFloridaLicense.com before hiring.
Non-compliant toilets (greater than 1.6 gpf installed after the FL code effective date, or any toilet with known defects) should be disclosed in FL real estate transactions under the Johnson v. Davis doctrine of material disclosure. Conversely, WaterSense-certified toilets are a selling point for eco-conscious buyers — mention them in your FL MLS listing under "green features." Homes with modern water-efficient fixtures often appraise better and sell faster in FL's competitive market, particularly in South FL where water rates are highest.
| Measurement | Standard FL | Older FL Homes (Pre-1970) | Why It Matters |
|---|---|---|---|
| Rough-In Distance Floor drain center to wall |
12 inches | 10" or 14" (common in older construction) | Wrong rough-in = toilet won't fit. Measure before purchasing. 10" and 14" models are available but limited. |
| Bowl Depth (front to back) | Round: 16"–17" Elongated: 18"–19" |
Same | Elongated bowls are more comfortable but need more space. Measure from wall to front of existing toilet. |
| Seat Height | Standard: 15"–16" Comfort/ADA: 17"–19" |
Usually 14"–15" (older) | Comfort-height toilets are 2–4" taller — great for adults, may be awkward for young children. |
| Tank Clearance | Min 6" to finished wall behind tank | May be tighter in older bathrooms | Tankless pressure-assist models fit better in tight spaces. Measure depth of current toilet first. |
No permit needed: Replacing a toilet in the same location (same drain, same rough-in). This is the most common scenario and covers 90%+ of FL toilet replacements.
Permit required: Moving a toilet to a new drain location, adding a new toilet, rerouting drain piping, or altering the main drain stack. Unpermitted plumbing work can result in fines, required removal of work, and disclosure obligations when selling your home. Your CFC-licensed plumber will advise on your specific county's requirements — Broward, Miami-Dade, and Palm Beach County all have slightly different filing procedures.
Find out exactly how many gallons and dollars a WaterSense toilet replacement saves you every year in Florida. Enter your household details below.
Each bar shows your total accumulated water cost savings at the end of that calendar year. Does not include rebates or avoided repair costs.
The Floridan Aquifer supplies over 90% of Florida's drinking water. With FL's population growing by 300,000–400,000 people annually, water conservation is increasingly critical to the state's long-term sustainability. Every household that replaces a 3.5 gpf toilet with a 1.28 gpf WaterSense model removes roughly 8,000–11,000 gallons per person per year from demand — equivalent to draining 80–110 full bathtubs. Your individual choice matters at scale.
The savings calculator above shows water bill savings only. A new toilet also eliminates the recurring maintenance costs of an aging unit. FL homeowners with 10+ year-old toilets typically spend $75–$250/year on flapper replacements, fill valve rebuilds, and wax ring re-seats due to hard water damage and age. A new WaterSense toilet should require zero maintenance for 7–10 years under normal FL conditions. Add these avoided costs to your actual payback calculation.
A toilet with a worn flapper that "runs" constantly can waste 200+ gallons per day — that's $365+/year at FL's average $5/1,000 gallon rate, and up to $584/year in South FL coastal areas. A slow phantom flush (where the toilet refills briefly every hour) can waste 30–50 gallons/day invisibly. If your toilet runs, address it immediately — either repair the flapper or replace the toilet entirely if it's old. Add a few drops of food coloring to the tank: if color appears in the bowl without flushing, you have a leaking flapper.
| FL City / Utility | Approx. Rate ($/1,000 gal) | Tier Structure | Notes |
|---|---|---|---|
| Miami-Dade Water | $6.50–$12+ | 4 tiers — rates jump sharply above 5,000 gpd | One of FL's highest rates — toilet efficiency extremely valuable |
| Broward County | $5.50–$9.00 | 3 tiers | Rate varies by municipality — Ft. Lauderdale, Hollywood, Pembroke Pines differ |
| Palm Beach County | $4.50–$8.00 | 3 tiers + conservation surcharge | SFWMD rebates active in most PBC municipalities |
| Tampa (City of) | $3.50–$5.50 | 2 tiers | Generally lower than South FL — but TECO rebate still available |
| Jacksonville (JEA) | $3.00–$4.50 | Flat + volume charge | Lowest major-city rate in FL — JEA still offers toilet rebates though |
| Orlando (OUC) | $3.50–$6.00 | 3 tiers | Rate increases significantly for high-usage households |
| Naples / Collier County | $5.00–$9.00 | 3 tiers + seasonal surcharge | High seasonal occupancy + limited groundwater = premium rates |
| Fort Myers / Lee County | $4.00–$6.50 | 2 tiers | Rates increased significantly post-Hurricane Ian infrastructure repairs |