Handy Explains Why the Shower Water Pressure Drops and What You Can Do About It


According to Handy, nothing beats enjoying a warm shower after a long, hectic workday. It not only helps you to relax your mind but destress your body. However, your mood can turn sour instantly if they show water pressure starts to get low and slows down to a dribble. Fortunately, it is not necessary to call and hire a professional if you can detect the problem yourself and learn how to fix it.

The Discussion

Here are a few reasons why shower water pressure can drop and what you can do about it:

  1. Faulty water pressure reduction valve – The water pressure reduction valve controls the pressure of the water when it flows from the water supply to your main bath. However, without proper maintenance, it can turn faulty and would not be able to maintain the proper pressure.

To confirm whether the water pressure reduction valve is at fault, make sure to check the water mains pressure and observe whether the underlying in-line valves and the main shut off valve are opened properly. It’s best to call a local plumber if you detect any issues.

  1. Clogged showerhead – Since showerheads also act like filters, they tend to accumulate mineral deposits after a period of time and get clogged as a result. Fortunately, it’s easy to clean it and make sure it doesn’t get clogged often with periodic cleaning. To clean the showerhead, remove it and dip it in a mixture of vinegar and water overnight. The cleaning solution will dissolve the mineral deposit that was blocking the flow of water.

You can clean the showerhead with a vinegar-water solution every few weeks to keep the showerhead free of any mineral deposit.

  1. Issue with old low-flow showerhead – Low-flow showers are designed to restrict the flow of water to limit water loss when showering. When such showers become old, the efficiency of the system declines, and it can lower the water pressure too much. There is nothing you can do to fix such systems. However, it is a better investment to replace such shower systems and install modern shower systems that are more effective and also allow you to conserve water.

  1. Issue with pressure-balancing valve – Problems with the pressure-balancing valve are common in shower systems that come with a single control mode and only one valve to adjust the water pressure. The valves in such shower systems maintain the water pressure by combining warm as well as cold water. As a result, the pressure inside such shower systems begins to fluctuate when nearby fixtures such as toilets are utilized, and it needs to compensate with a major pressure drop.

It’s necessary to hire a professional plumber to fix such issues. However, it is wiser to replace the old shower system, ideally, with a premium thermostatic mixing valve for better longevity and enhanced quality.


Handy suggests you perform scheduled inspections of the plumbing system in your home to avoid any nasty surprises.

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