What Is a Low-Flow Shower Head, and Does It Affect Water Pressure?

If you're looking for ways to save water without sacrificing comfort, upgrading to a low-flow showerhead is one of the easiest changes you can make. Low-flow shower heads use less water while still giving you a satisfying, rinsing shower — all without sacrificing the water pressure you love.

Curious about upgrading? Learn more about what a low-flow shower head is and how it can lower your average shower flow rate.

What Is Considered a Low-Flow Shower Head?

What makes a showerhead low-flow is the amount of water that it expels per minute. According to the EPA, the average showerhead uses 2.5 gallons of water per minute (GPM). However, low-flow showerheads with a WaterSense label use no more than 2 GPM. Many ultra-efficient shower heads offer flow rates as low as 1.5 GPM while still delivering a comfortable spray.

These differences may sound small, but they make a large impact. Upgrading to a water-efficient showerhead could save you around 2,700 gallons of water per year.

How Do Low-Flow Shower Heads Maintain Strong Pressure?

Low-flow shower heads often feature smaller spray nozzles than traditional designs. By forcing the same volume of water through narrower openings, the water exits at a higher velocity, which increases the sensation of pressure.

Some designs also group these nozzles strategically to spread water evenly while still maintaining strong coverage.

Many low-flow models also use pressure-compensating technology. Inside the shower head, a small valve or diaphragm automatically adjusts the internal water flow based on supply line pressure.

Aerating vs. non-aerating

There are two types of low-flow showerheads, and they work in different ways to maintain pressure in the showerhead: 

• Aerating showerheads expel a mix of water and air, so the flow of water stays constant.
• Non-aerating showerheads maintain their pressure with pulses.

While the pressure stays constant in aerating showerheads, the water temperature can be affected, dropping the temperature between 5 and 15 degrees, so it may not be the best choice for people who like a hot, steamy shower.

Busting Myths About Shower Head Low Water Pressure

If you've ever had a shower with low pressure, you know how frustrating it can be. However, many of the complaints people associate with low-flow showerheads are actually due to other plumbing issues.

Let’s clear up a few myths:

• Myth: Low flow means low pressure.
• Fact: Flow rate is not the same as pressure. Quality low-flow heads are designed to maintain a strong spray force.
• Myth: You won’t rinse off soap or shampoo.
• Fact: As long as your showerhead’s not suffering from low water pressure, modern low-flow heads rinse just as effectively.
• Myth: The water just trickles out.
• Fact: If you notice trickling, it may be a clog or mineral buildup. You may need to clean or replace it to restore full function.

How to Choose the Right Low-Flow Shower Head

Not all low-flow shower heads are created equal. Here are some tips for choosing a new showerhead.

• Check the GPM rating: 2.0 GPM or less is considered low-flow. 1.5 GPM is a good target for saving the most water in the bathroom.
• Look for WaterSense certification: This ensures the head has been independently tested for performance and water savings.
• Choose your spray style: Options include wide spray, massage settings, or rainfall modes.
• Consider material quality: Brass and stainless steel components tend to last longer than plastic.

Benefits of Installing a Low-Flow Shower Head

Installing a low-flow shower head has several benefits for your home, wallet, and the environment:

• Reduces water consumption
• Lowers monthly utility bills
• Conserves hot water and reduces energy use
• Decreases strain on your septic system
• Helps your plumbing system perform more efficiently
• Eligible for rebates in some areas

Will a Low-Flow Shower Head Help With Plumbing Efficiency?

Yes! Using less water per minute means your pipes, drains, and septic system don’t have to work as hard. That can lead to:

• Fewer backups or clogs over time
• More even water distribution in multi-story homes
• Less wear and tear on your water heater and supply lines

If you're experiencing consistent showerhead low water pressure, it's also a good opportunity to check for sediment buildup or aging pipes that may be limiting your system's potential.

Enjoy Low-Flow Showers Without Losing Water Pressure

Ready to save water without sacrificing your shower experience? Whether you need help choosing a new fixture or dealing with a shower head with low pressure, Roto-Rooter can help. Our licensed plumbers specialize in water-saving upgrades, pipe inspections, and home plumbing improvements that make your system more efficient and eco-friendly.

Schedule your consultation today and experience the benefits of a modern low-flow showerhead.