4 Easy Ways to Make Your Plumbing System More Efficient

As you may know from personal experience, running a household costs money. Many homeowners look for any and every opportunity to lower operating costs, such as energy bills, water bills, and repair expenses. Your plumbing equipment can play a major positive or negative role in your attempts to stick to your monthly budget.

If you want to lower mounting utility bills and avoid expensive repairs, know what you can do to make your plumbing system use water and power more efficiently.

Give serious thought to the following four steps toward more efficient and cost-effective home plumbing.

1. Invest in Low-Flow Toilets

   Traditional toilets that use several gallons of water per flush may provide satisfying results, but they do so at unnecessary expense. These appliances, while relatively inexpensive to install, can add significantly to your monthly water bills. If you want to reduce your utility costs, consider replacing that old-fashioned toilet with a low-flow alternative.

   Low-flow toilets use a mere 1.28 to 1.6 gallons of water per flush, as opposed to old-style toilets that can require up to seven gallons. This greater efficiency can add up to hundreds or even thousands of dollars in savings over the operational life of the toilet. Some advanced models even offer an extra-low flow option for liquid waste.

   As tempting as these benefits may sound, you shouldn’t buy a low-flow toilet until your plumber has verified that your pipes are in good condition. Deteriorating sewer lines can cause friction, which slows the waste and lets the water go, causing a clog. If you own an older home, for instance, your plumber may need to make some modifications to the pipes before installing the new toilet.

   In older Tacoma neighborhoods like the North End, Stadium District, and Hilltop, many homes still have pre-1992 toilets that predate the federal 1.6 gallons-per-flush standard. Swapping just one of these for a modern WaterSense-labeled toilet can cut household water usage by 20 to 30% and noticeably trim a Tacoma Public Utilities water bill, especially in homes where the same toilet has been flushing the same way since the Reagan administration.

2. Replace Traditional Showerheads With Low-Flow Models

   Just as low-flow toilets can help you save water, so can low-flow showerheads. A typical shower uses a lot of water, which can make a significant impact on your water bill, depending on how many showers your family members take. Decades-old showerheads in older homes feature a powerful but wasteful flow rate.

   Low-flow showerheads use less water per shower than their older cousins without losing their ability to get you thoroughly clean. Some increase their cleaning power by supplementing the water stream with air, a technique called aeration. Others feature a laminar-flow design that shoots multiple, separate streams of water.

3. Update Your Water Heater

   Old water heaters can sabotage your plumbing system’s efficiency. A conventional tank-based water heater may lose its heating power as minerals collect within it, forcing you to use more energy to get hot water. Even when this type of water heater escapes limescale buildup, it can’t offer the energy efficiency of newer models.

   Ask your plumbing specialist to recommend the right type of energy-efficient water heater as a replacement for your current model. A tankless water heater, which heats small amounts of water on demand, can reduce energy costs by 34 percent. A heat-pump water heater offers up to three times the efficiency of a conventional unit.

   In Washington, federal and state efficiency programs (including IRA-funded heat-pump water heater rebates administered by the WA Department of Commerce) can cover thousands of dollars of the upgrade cost, depending on household income. That makes the math even better for Tacoma homeowners considering a heat-pump water heater or high-efficiency tankless replacement, since the rebates significantly shorten the payback period.

4. Schedule Regular Plumbing Inspections

   Your home can waste water without you even realizing it if a leak has developed in any of the pipes or lines. A leaky sewer line can cause raw sewage to leak into the walls or crawl space, forcing you to run your appliances harder while leaching water into your yard. A leak inside your home can do expensive damage while also increasing your water usage.

   You can steer clear of these pricey inefficiencies by scheduling regular maintenance inspections with your plumber. Technicians can check your sewer line by running a camera-equipped cable through it and looking for cracks or clogs. Evaluations of your interior pipes enable technicians to address tiny leaks before they can worsen.

Estimated Savings and Payback by Plumbing Efficiency Upgrade

Not every upgrade pays back at the same rate. Here is how the four steps above tend to compare on cost, savings, and payback period for an average household:

How to Sequence Your Plumbing Efficiency Upgrades

Smart sequencing matters as much as the upgrades themselves. The order below usually saves the most money over the shortest timeframe:

1. Schedule the inspection first. Even though it appears as step four in this list, a baseline inspection should usually come before any fixture purchase. If your existing pipes are corroded or your sewer line is failing, a low-flow toilet can actually clog your system faster than the higher-flow original did. Find out what the plumbing can support before you buy.
2. Tackle the showerhead next. It is the cheapest upgrade ($20 to $80) and the fastest payback (often under a year). No permit, no plumber required for most installs, no risk to existing plumbing.
3. Replace the toilet third. Higher upfront cost but substantial water savings. Confirm the existing rough-in dimensions and floor flange condition before ordering, especially in older homes where the rough-in standard has changed over the years.
4. Water heater upgrade last. Biggest investment, longest payback in raw dollar terms, but also where the federal and state rebates make the biggest dent in upfront cost. Time this upgrade with rebate availability for the best math.

At Spartan Plumbing Inc. (LIC #SPARTSI794OC), we have helped Tacoma and Pierce County homeowners lower their utility bills with smarter plumbing since 1958. From low-flow fixture swaps to heat-pump water heater installations that qualify for state and federal rebates, our licensed team can sequence the upgrades that save you the most money, then put the work on a flat-rate written estimate before any installation starts. Call or text 253-231-7015 to walk through your efficiency upgrade options.

Frequently Asked Questions

How much can I actually save by switching to low-flow fixtures?

The combined savings from a low-flow toilet, low-flow showerhead, and faucet aerator typically run $100 to $300 per year in water and water-heating costs for an average household. The exact savings depend on household size, your local water rates, and how often hot water is used. EPA WaterSense estimates the average family can save 30% on indoor water use just by switching.

Are low-flow toilets effective on older home plumbing?

Sometimes yes, sometimes no. Low-flow toilets work fine on modern plumbing, but in older homes with deteriorating sewer lines or undersized drain pipes, the reduced flow can struggle to push waste through. A plumbing inspection before purchase tells you whether your existing lines can handle a low-flow upgrade or whether the pipes need to be cleared or replaced first.

What is WaterSense and why does it matter?

WaterSense is an EPA program that labels water-efficient products meeting specific performance and savings standards. WaterSense-labeled toilets use 1.28 gallons per flush or less, and WaterSense-labeled showerheads use 2.0 gallons per minute or less. The label means the product has been independently certified to save water without sacrificing performance.

How long does a typical efficiency upgrade pay back?

Showerheads pay back in under a year. Low-flow toilets typically pay back in 2 to 6 years. Tankless water heaters pay back in 10 to 25 years, mainly through energy savings. Heat-pump water heaters pay back faster, often 5 to 10 years, especially after factoring in federal and state rebates.

Do efficiency upgrades qualify for rebates in Washington?

Yes, many do. Federal Inflation Reduction Act programs cover heat-pump water heaters with rebates up to $1,750 for qualifying households, administered by the Washington State Department of Commerce. Tacoma Public Utilities and Puget Sound Energy also run periodic rebate programs for water-efficient fixtures and ENERGY STAR appliances. Check current program eligibility before purchasing.

Can I do these upgrades DIY or do I need a licensed plumber?

Showerhead swaps are typically straightforward DIY. Faucet aerator replacements are DIY. Toilet swaps are possible DIY, but the wax ring and bolt seal are common failure points for first-time installers. Water heater replacements require a licensed plumber in Washington, especially for any change in fuel type or venting configuration.