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My Shower Has Low Water Pressure

Don't let low water pressure in your shower ruin your morning — there could be a simple fix. When your water pressure is low, a clogged showerhead or a restricted shower valve could be at the root of the problem.

Why Your Shower Has Low Water Pressure

Get to the bottom of what’s causing your pitiful pressure with these tips on what to investigate first.

Potential Issues

  • low water pressure throughout the house
  • low water pressure in the sink
  • low water pressure in the shower

A water supply line runs water into your house. If there's a restriction in the line, then you might notice low water pressure from a faucet. That's rather inconvenient when you try to take a shower or wash your hands.

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  • no hot water
  • low water pressure in the shower

In the process of heating your water, the high temperatures inside your water heater can cause the lime scale that's naturally in tap water to separate and cling to the inside of your heat exchanger. As the coating gets thicker, it starts to act as a insulator, blocking the heating coil's ability to transfer heat. If not fixed, it could completely block your water heater from producing heat — leaving you out in the cold.

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  • low water pressure in the shower

Minerals in hard water, often calcium, can build up inside the shower head. As the buildup accumulates, it will lower your water pressure over time. Calcium likes to stick on the rubber nozzles of your shower head and on the inside of the shower arm or shower hose. When it does, you will notice low water pressure. Better to get ahead of the issue and clean your shower head, or you won't be able to rinse that shampoo out to clean your own!

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  • low water pressure in the sink
  • low water pressure throughout the house
  • low water pressure in the shower

Your water softener sits between the main water line and your taps. During the day, water only passes through the water softener while you're running your taps. But, each night, your water softener takes advantage of the low-use hours to do a little housekeeping. Between 2:00 a.m. and 4:00 a.m, it runs water through the backwash line to clean itself before the next day. If the seals on the water softener are split, torn, or shifted out of place, or if the piston is scored or scratched, water will leak through the backwash line. Since the backwash line catches the leaking water and sends it out to the drains, it can be a hard problem to catch before you're smacked with a huge bill.

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  • low water pressure throughout the house
  • low water pressure in the shower
  • low water pressure in the sink

The main water valve is the control that turns the water on or off to your entire home. There are only a few reasons this valve is turned off on purpose. If you've recently done repairs, the main control valve is often shut to prevent leaking while the water heater was repaired or replaced. The main water valve can also be shut to winterize a home for sale. If neither of these is true, it's likely someone may have bumped the valve into the "off" position. No matter how it happened, as long as there's no risk of leaks, you simply need to switch it back on and be on your way like nothing happened.

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  • low water pressure throughout the house
  • low water pressure in the shower
  • low water pressure in the sink
  • water on the floor

If there is water on the floor under the main water supply, it could be caused by condensation or a leak. Water supply lines can sometimes leak if the pH of your water is too low. A pH of 7 is neutral, and anything lower than that starts to become acidic, which can wear down copper tubing and brass fittings. Once a leak has sprung, you'll need to replace that section of the line.

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