How Shower Head Flow Rates, GPMs And WaterSense Impact Your Shower (2024)

Are you scratching your head wondering why your Shower Head pressure is so low? Discover what determinesyourshower head flow rate and what you can do about it.

One of the mainreasons for this is the restricted Flow Rate built into your Shower Head, which is imposed by your government municipality.

While it may seem like this is happening all the time, the Water Flow Rate has been a Maximum of 2.5 Gallons Per Minute (GPM) since 1992! That means for every minute of Shower time, 2.5 Gallons passes through your Shower Head. It may not feel like a lotwhen it's coming out, but it's like going through2.5 jugs of milk from the store in just a minute. And most showers are MUCH longer than a minute!

According to Home Water Works, in "an average home, showers are typically the third largest water use after toilets and clothes washers. The average American shower uses 17.2 gallons (65.1 liters) and lasts for 8.2 minutes at average flow rate of 2.1 gallons per minute (gpm) (7.9 lpm)."

Based on data like this, states likeCalifornia, Colorado and New York have recently changed the Maximum Flow Rate from 2.5 GPM to 1.8 GPM! That's a 28% cut in Flow Rate, which leads to less pressure from your Shower Head.

Yup, it's the law. Let's move on though to find out about the different Flow Rates, how they impact you, and what you can look for to get the best Shower Head.

Differentiating Between Low Flow And High FlowShower Heads

If you're in the market for a new Shower Head, and you do or do not want to have a Low Flow Shower Head, make sure you double check the Product Specificationsto see what Flow Rate it has.

When it comes to Shower Heads, you'll typically find 2.5 GPM, 2.0 GPM, 1.8 GPM and 1.5 GPM.

If you're looking for the most pressure, go for the 2.5 GPM Flow Rate, unless you are restricted because you reside in California, Colorado or New York. Again, this has been the Maximum Flow Rate since 1992.

The step down from there in Flow Rate is 2.0 GPM. You'll find many Shower Heads with something called a WaterSense Certification which is given bythe EPA. According to the EPA, "products bearing the WaterSense label have been independently certified to perform well; help save water, energy, and money; and encourage innovation in manufacturing." As it stands today, Shower Heads bearing the WaterSense label have a Flow Rate of 2.0 GPM or less.

How Shower Head Flow Rates, GPMs And WaterSense Impact Your Shower (1)

You maythink that 2.0 GPM of Water Flow is at low as it goes, but that's not so. There are Shower Heads called "Eco Performance" Shower Heads, typically marked with an "EP" in their model number. These Shower Heads have a Maximum Flow Rate of 1.5 GPM. That's 40% less water output than the 2.5 GPM Flow Rate.

That said, you don't have to be mandated by a state to use a Shower Head with a 2.0 or 1.5 GPM Flow Rate. Other reasons, besides state regulations, could be:

  • Lowering your water bill
  • Conserving a low water supply, such as on a boat, RV, or if you're on well water.
  • Sincereconcern for the environment

    Now that you're armed with more information on the different Flow Rates, Certifications and Labels, you'll be able to find the Shower Head Flow Rate that best meets your needs, without any surprises.

    One of the unique things about The Shower Head Store is that all of our Shower Heads are personally used by our staff.Not only that, but we only recommend Shower Heads that meet our strict criteria of durability, performance and design.

    For those of you struggling to find thebest Shower Head for you, we've got you covered with our experts top picks.

    Best Low FlowShower Head

    This is going to everyone from California, Colorado, New York City and anywhere else where your municipalitieshave strict Flow Rate restrictions. Our Professional Plumbers and Design Experts have chosen the top 2 Shower Heads for those of you in a state with Low Flow guidelines. Both options below currently meet those guidelines, with 1.75 and 1.8 Gallon Per Minute Flow Rates respectively, while still offering high performing spray and features.

    Buy-> HammerHead Showers Fixed Shower Head Buy-> HammerHead Showers All Metal Low Flow 3-Spray Hand Held

    How Shower Head Flow Rates, GPMs And WaterSense Impact Your Shower (3)
    How Shower Head Flow Rates, GPMs And WaterSense Impact Your Shower (4)How Shower Head Flow Rates, GPMs And WaterSense Impact Your Shower (5)


    Best High Pressure Shower Head

    For everyone else not restricted by Flow Rate laws, here are some Shower Heads that truly deliver exceptional High Pressure Flow every time. Whether you have low water pressure in your house, or just want to kick things up a notch, you can't go wrong with either of these Shower heads.

    Buy->HammerHeadShower Head 2.5 GPMBuy-> HammerHead 3-Spray Hand Held Shower Head 2.5 GPM
    How Shower Head Flow Rates, GPMs And WaterSense Impact Your Shower (6)
    How Shower Head Flow Rates, GPMs And WaterSense Impact Your Shower (2024)

    FAQs

    How many GPM is good for a shower head? ›

    Standard shower heads use 2.5 gpm, but to earn the WaterSense label, a product must use no more than 2 gpm and still meet strict performance requirements. The EPA estimates that the average family could save 2,900 gallons of water per year by installing a WaterSense-labeled shower head.

    What is the flow rate of a WaterSense shower head? ›

    Did you know that standard showerheads use 2.5 gallons of water per minute (gpm)? Water-saving showerheads that earn the WaterSense label must demonstrate that they use no more than 2.0 gpm.

    What is better, 1.8 or 2.5 gpm shower head? ›

    When it comes to Shower Heads, you'll typically find 2.5 GPM, 2.0 GPM, 1.8 GPM and 1.5 GPM. If you're looking for the most pressure, go for the 2.5 GPM Flow Rate, unless you are restricted because you reside in California, Colorado or New York. Again, this has been the Maximum Flow Rate since 1992.

    Is a higher flow rate shower head better? ›

    A 2.5 gpm shower head will have a better pressure and shower experience than a 1.5 gpm shower head. A 1.8 gpm shower head would have a better pressure and shower experience than a 1.0 gpm shower head. Another drawback of low flow shower heads boosting the pressure is the temperature instability.

    What flow rate for a good shower? ›

    If the flow rate is less than 10 litres per minute, you have low water pressure. A flow rate between 10 and 15 litres per minute is considered acceptable but can be improved. A flow rate that is above 15 litres per minute will be regarded as good.

    Can you get a shower head with more than 2.5 gpm? ›

    National standard - 2.5 gpm

    This includes all type of shower heads like hand-held shower, wall mount shower head, shower head systems, and rain showers. For shower heads made pre 1990s, it is still possible to find 3.5 gpm flow rate or even higher.

    What is the most water efficient shower head? ›

    Top 10 best water-saving shower heads in 2024
    1. Kohler Forté 1.75 GPM Shower Head. ...
    2. Lokby 1.8 GPM Handheld Shower Head. ...
    3. High Sierra's 1.5 GPM Fixed Shower Head. ...
    4. Pulse Shower Spas 1.8 GPM Kauai III Shower Head. ...
    5. Moen Engage Magnetix 1.75 GPM Handheld Shower Head. ...
    6. Delta H2Okinetic 1.75 GPM Handheld Shower Head.
    Feb 16, 2024

    Is 1.75 gpm enough for a shower head? ›

    1.75 GPM shower heads are considered a low flow or water saving choice. These shower heads are designed to minimize water usage, making them both environmentally friendly and cost-effective in the long run.

    How do I choose a shower head with good water pressure? ›

    Generally, the fewer openings the water has to escape the shower head, the more pressurized that stream of water will be. If you want to make sure you're getting maximum pressure but still want the option to expand the stream for more coverage, choose a shower head with several stream settings to choose from.

    What makes a shower head more powerful? ›

    High Pressure Nozzle

    This type of nozzle is specially designed to optimize water flow and increase water pressure, even in areas with low water pressure. These nozzles are often designed with small openings that create more focused and powerful streams of water, allowing you to enjoy a high pressure shower experience.

    How do I know if my shower head is water efficient? ›

    Look for the WELS rating

    Each label includes the water flow rate (measured in litres per minute) and a star rating. It's generally recommended that you choose a shower head with a minimum 3-star rating – which uses 9 litres or less per minute.

    Does GPM affect water pressure? ›

    So if there is a shower running that uses 2 gpm, the washing machine which uses 3 gpm is running, and the kitchen sink is running at 3 gpm, which means 8 of 12 gallons are currently being used. This can often lead to lower “water pressure” because the flow rate simply can't keep up.

    Does higher GPM mean more pressure? ›

    While flow rate measures how many gallons of water flow out of your shower head per minute, water pressure is the force with which that water comes out. The two terms are often confused, but they're actually pretty different. Water pressure is determined by your home's plumbing and municipal water supply.

    Is 2.5 gpm low flow? ›

    Unfortunately, there is no firm definition of low-flow, but it's generally accepted that anything using 1.5 gallons per minute (gpm) or less is considered “ultra low flow,” while anything using 2.5 gallons per minute to 1.5 gallons per minute is considered “low flow.” Nowadays, thanks to standards set by the government ...

    Are 2.5 gpm shower heads allowed in California? ›

    Bathroom products: Residential household toilets must use no more than 1.28 GPF (gallons per flush). Residential bathroom faucets must use no more than 1.2 GPM (gallons per minute). Residential showerheads, including handheld showers and fixed body sprays, must use no more than 1.8 GPM.

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