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Any fixture · a decision

Replace fixtures now, or wait until they break?

Replacing fixtures now is worth it for toilets made before 1994 and anything that leaks; a working 1.6 gpf toilet or 2.2 gpm faucet can usually wait until it fails or you remodel.

VerdictDepends

17,830 gal

gallons a year a pre-1980 5 gpf toilet uses beyond a 1.28 gpf model, 2.6 people (our arithmetic, EPA assumptions)

Replace toilets made before 1994 and anything that leaks now; swap working post-1994 fixtures when they fail.

Worked out by Where Your Gallons Go from 11 dated sources · numbers checked 11 November 2026

The answer by situation

  • Toilet installed before 1980 (about 5 gpf)Replace nowUses about 17,830 gallons a year more than a 1.28 gpf model for 2.6 people, about $108 at EPA's assumed rate.
  • Toilet installed 1980 to 1994 (about 3.5 gpf)Replace nowAbout 10,640 extra gallons a year, roughly $64 at $6.06 per 1,000 gallons.
  • Working 1.6 gpf toilet, no leakWaitThe gap to 1.28 gpf is about 1,530 gallons a year, near $9, so it can wait for a failure or remodel.
  • Showerhead that fills a gallon in under 20 secondsSwap nowEPA puts the average family's saving from WaterSense labeled heads at 2,700 gallons a year.
  • Any fixture that drips, runs or fails a dye testFix nowEPA counts more than 3,000 gallons a year from one faucet dripping each second.
A newly fitted bathroom vanity with a dark stone top, an oval sink and a framed mirror
A newly fitted bathroom vanity with a dark stone top, an oval sink and a framed mirror

Which fixtures are worth replacing before they break?

Old toilets first, then old showerheads and bathroom aerators. Toilets take 24 percent of indoor use in EPA's breakdown. EPA says a main-bathroom makeover with a WaterSense labeled toilet, showerhead and aerator "can pay for itself in as little as 1 year," with no cost assumptions given; its Statistics and Facts page also credits WaterSense showerheads with 2,700 gallons a year per family and aerators with 700; see the showerhead page and the aerator page.

How can you tell how old a fixture is?

Start with the age of the house, then measure. EPA's calculator notes assume about 5 gallons a flush for toilets installed before 1980, about 3.5 for 1980 to 1994 and 1.6 after, and use 3.5 when nobody knows. Products made after January 1, 1994 must meet 1.6 gpf, 2.5 gpm for showerheads and 2.2 gpm for faucets (10 CFR 430.32).

For a showerhead, time a 1-gallon container: under 20 seconds means more than 3 gpm, and DOE says such a head could be replaced (DOE, archived copy of 1 Jan 2026). Under a faucet, a gallon in less than 27 seconds means more than 2.2 gpm (our arithmetic).

What does waiting cost you each year?

A toilet made before 1994 costs real water; a newer one, little.

What keeping one old toilet costs each year
Toilet kept instead of a 1.28 gpf modelPeopleExtra gallons a yearExtra cost a year at $6.06
Installed before 1980, about 5 gpf2.617,830$108
Installed 1980 to 1994, about 3.5 gpf2.610,640$64
Installed 1980 to 1994, about 3.5 gpf416,370$99
Installed after 1994, 1.6 gpf2.61,530$9

Source under the table: EPA WaterSense — How the WaterSense Calculator Works. Figures are our arithmetic using EPA's inputs (5.05 flushes per person daily, $6.06 per 1,000 gallons for water plus sewer); multiply by your own rate instead if it differs.

The dollars cover water and sewer only. EPA's whole-home figure for new toilets throughout is close to 13,000 gallons and over $170 a year (Residential Toilets, updated May 29, 2026). Divide your installed quote by the yearly dollars for a payback in years.

When is waiting the better call?

When the fixture already meets the federal limit, works and does not leak. A 1.6 gpf toilet traded for 1.28 saves about 1,530 gallons a year, which suits a remodel or the day the tank cracks. A 2.2 gpm kitchen faucet is similar, since WaterSense has no kitchen faucet label; see kitchen faucet flow. A leak never waits: running toilets and dripping faucets have their own checks.

Does any law make you replace old fixtures?

No federal rule does, but California's does for older homes. Federal limits and state sales limits, as in Texas and Vermont, govern products made or sold after a date. In California homes built on or before January 1, 1994, toilets over 1.6 gpf, showerheads over 2.5 gpm and interior faucets over 2.2 gpm had to go by January 1, 2017 (January 1, 2019 for multifamily and commercial), with narrow exemptions (Civil Code article 1.4, archived copy of 22 Sep 2025). Georgia applies its code when a broken fixture is swapped, and some cities add rules at sale or remodel, so check locally (Georgia EPD). More on state fixture rules.

Who should do the swap?

An aerator or showerhead is a homeowner job. Whatever the fixture, close its stop valve or the main and open a faucet to relieve pressure first. A toilet is heavy porcelain: drain the tank and use two people for a one-piece model. Each lift needs a new wax ring, fitted with the supply line as the toilet maker's instructions say. A stuck stop valve or a broken flange is a licensed plumber's job.

When the answer flips

  • The fixture leaks or the toilet fails a dye test: fix it now, because EPA counts up to 4,300 lost gallons daily from one jammed fill valve.
  • Your bill's rate is higher than EPA's: at $12 per 1,000 gallons the 3.5 gpf row is worth about $128 a year.
  • Your utility pays toward the model you want, as Denver Water did for 0.8 gpf toilets on 11 Nov 2026; see water utility rebates.
  • California home built on or before January 1, 1994: high-flow fixtures were due out under state law, unless exempt.

What to buy or ask a plumber

  • Look for the WaterSense label: 1.28 gpf or less for toilets, 2.0 gpm for showerheads, 1.5 gpm for bathroom faucets and aerators.
  • Ask your utility whether a rebate needs a listed model or pre-approval.
  • Flanges, sewer-side repairs and anything behind the wall are a licensed plumber's work.

Also asked

Should I replace all my fixtures at once or one at a time?

One at a time works, oldest toilet first, since it carries most of the gallons.

How long does a new toilet take to pay for itself?

Divide the installed price by the yearly savings for your toilet's age and household size. For a 3.5 gpf toilet and 2.6 people that is about $64 a year at EPA's rate, more where water costs more. We publish no prices, so use your own quote.

Can I keep repairing a fixture older than the federal limits?

Usually. Federal limits govern new products, so a new flapper or cartridge on an old fixture is fine; in a California home built on or before January 1, 1994, though, a high-flow fixture was due for replacement by January 1, 2017 (2019 for multifamily), unless an exemption applies.

What must a California seller say about old fixtures?

For a home built on or before January 1, 1994, a written disclosure of the replacement requirement and of whether noncompliant fixtures remain. Elsewhere, ask your local building department.

How we reached this

The verdict leans on EPA's calculator inputs (2.6 people, 5.05 flushes each a day, $6.06 per 1,000 gallons) and 10 CFR 430.32, checked 11 Nov 2026. Table figures are our multiplication, rounded to ten gallons and a whole dollar. The bucket timing is from a DOE page archived 1 Jan 2026. Fixture and labor prices are left out by design. California's retrofit and disclosure rules come from an archived copy of the Civil Code captured 22 Sep 2025, since the current text was not available to confirm on 11 Nov 2026.

Sources

  1. EPA WaterSense — How the WaterSense Calculator Works · calculator inputs · checked 11 Nov 2026
  2. EPA WaterSense — Residential Toilets · whole-home toilet savings · checked 11 Nov 2026
  3. EPA WaterSense — Statistics and Facts · makeover payback, fixture savings · checked 11 Nov 2026
  4. EPA WaterSense — How We Use Water · toilet share of indoor use · checked 11 Nov 2026
  5. eCFR — 10 CFR 430.32 · federal limits · checked 11 Nov 2026
  6. US DOE Energy Saver — Reduce Hot Water Use for Energy Savings · showerhead bucket test · archived copy of 1 Jan 2026, checked 11 Nov 2026
  7. EPA WaterSense — Fix a Leak Week · dripping faucet figure · checked 11 Nov 2026
  8. EPA WaterSense — Know Your Flow · stuck fill valve figure · checked 11 Nov 2026
  9. California Legislative Information — Civil Code article 1.4 · retrofit and seller disclosure · archived copy of 22 Sep 2025, checked 11 Nov 2026
  10. Georgia EPD — Georgia Water Stewardship Act · replacement rule · checked 11 Nov 2026
  11. Denver Water — Toilet rebates · toilet rebate · checked 11 Nov 2026

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