Some Terms You Need to Know about Shower System

When switching a showerhead or shower system, there is much to consider. Choosing blindly can lead to disappointment, even though there are many good options in the market. Be sure to do some research before making a decision.

What Does GPM Stand For?

The first and most important term to understand when it comes to your shower is GPM. GPM stands for gallons per minute and refers to the amount of water flowing out of your showerhead every 60 seconds. Knowing your GPM is important for two reasons: water consumption and water bills. If you recall from our Reducing Water Consumption Guide, it is crucial to reduce our water waste because it is an important and limited natural resource and it can drive up your home expenses. It is easy to overuse water in the shower without realizing it, especially if you are unaware of your current shower’s GPM. To meet federal flow rate standards, your GPM should be 2.5 or less.
Rest assured, a low GPM does not mean weaker water flow! Karoshome offers top-rated shower systems and bathtub fillers ranging from 1.5 GPM to 2.5 GPM. Our shower heads are designed with innovative Air Injection Technology that injects air into each water droplet for a more powerful water flow with less water. Take a look at the Omni Concealed Thermostatic Shower System which offers a luxurious and mighty water flow with a GPM of only 1.5. Karoshome can help you enjoy spa-like showers with an efficient GPM for reduced water consumption and savings on your water bills.

What is a Shower Valve?  

The shower valve is the part of the shower system that controls the water emission and temperature. It is important to know what kind of valve you have and how it works so that you can determine whether it is the best option for your home. Currently, there are two main types of shower valves available: pressure-balanced valves and thermostatic valves. The most signicant difference between the two is that pressure-balanced valves offer only 1 control dial for both water temperature and pressure, while thermostatic valves offer separate control dials for each.
While luxury showerhead systems are mostly associated with thermostatic valves, Karoshome offers sleek designs and high-performing appliances with both pressure-balanced and thermostatic valves. For example, the Nosh 10 Inch Rainfall Shower System is equipped with a pressure-balanced valve and features a practical wall mount showerhead that delivers the optimal coverage and luxury of a ceiling mount.

What is a Diverter Valve?

If you’d like to have a complete shower system or a tub filler combined with a showerhead unit, you need to learn about diverter valves. Diverter valves are found in shower systems that emit water from more than one point, this includes multiple shower head systems, like the Kool 2 Spray Thermostatic Shower System, and shower systems with body jets, like the Qexle 12 Inch Ceiling Mounted Shower System. The diverter valve is responsible for directing the flow of water between outlets and is required so that you can use all parts of the multi-function shower system. All of Karoshome’s complete shower units are equipped with the appropriate diverter valve for proper installation and performance. It is important to remember that there is a difference between shower valves and diverter valves; they each perform specific functions and cannot be used interchangeably.  

What Is a Spray Pattern?

The spray pattern of your shower system refers to the pressure and consistency with which the water is being released. Some showerheads are equipped to deliver multiple spray patterns for optimal comfort and efficiency. Popular shower set spray patterns include full-body, mist, and rainwater. Karoshome offers luxurious rainwater shower systems, such as the Yono Rain and Waterfall Combo Shower System, that mimic the natural flow of falling water for a relaxing shower experience. If your full shower system only offers one spray pattern, it may be time to look for a replacement.


Being able to identify the different parts of your shower system and their specific functions will prove beneficial when repairs are needed, or replacements are made. It is important that you know your showerhead’s GPM, the type of shower valve you currently use, whether your shower system requires a diverter valve, and that there are different spray patterns available so that you can talk and shop like a pro!

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