You can help your water heater work efficiently at the required pressure by flushing out buildup and sediments from the tank. Doing this will also help to improve the quality of water you get in your home.
A quick and easy way to increase water pressure is to adjust the pressure-reducing valve, which can be found in your home, usually close to your water meter.
Partially Closed Valve
One of the most common issues that can lead to low water pressure problems is that the water is being obstructed by one or more partially closed shutoff valves. Typically, a home will have one main shutoff valve located inside the house.
The two options to fix this problem is to either have your plumber clean the water supply lines or replace them with new water pipes. Sediment and scale buildup inside the water heater. If your water heater is not that old, you could have your plumber flush and clean the sediment and scale from inside the tank.
Some include a shut or blocked water meter valve, mineral buildup clogs pipes, corroded pipes, or even a crack in the main city supply pipe to your home.
If there's an accumulation of sediments in your hot water tank, it can lower your water pressure. The presence of kinks in the flexible water pipes used in water heaters can result in low water pressure. If the shut-off valve isn't fully open, water pressure can drop.
Water Pressure Readings
Normal water pressure is generally between 40 and 60 PSI. Most homeowners prefer something right in the middle around 50 PSI. Once you measure the water pressure in your house, you can adjust it to a setting that is ideal for all family members and household uses.
If the hot water pressure is low, but the cold is fine: You may have sediment and limescale build-up in the pipes or faucet, or it could be caused by a partially closed or restricted shutoff valve.
If you have a sink in your home where the hot water pressure is low but cold is fine, it can indicate an issue with your water heater. Typically, if your hot water heater is having issues that cause low water pressure when the hot water is running, it won't affect only one faucet in the house.
Depending on the details of your situation, a sudden drop in water pressure could indicate any of the following issues: Faulty plumbing fixture. Faulty hot water heater. Leaking/blocked water supply pipe.
If you have low water pressure in all your plumbing fixtures, the issue is almost definitely with your water supply or your pipes. However, if it's one or a few fixtures that seem to have a low flow, you may want to check out the fixtures.
The most common cause of low shower pressure is a blocked showerhead, as a result of limescale build-up. These blockages obstruct the water flow, leading to reduced pressure over time. Most showers are fitted with a filter, protecting the pipework from debris, but this can become partially blocked by scale.
Clogged aerators and clogged cartridges are two of the most common causes of low water pressure in a sink. The aerator is the tip of the faucet that the water comes out of, while the cartridge is found underneath the sink handle and enables you to stop and start the flow of water.
Check Your Aerator
If you have especially hard water, aerators become clogged with hard water buildup, a common cause of low water pressure in kitchen fixtures. Clean your aerator for a quick and easy DIY fix. Remove the aerator from the faucet using pliers and a towel (to prevent scratching).
Sediments, mineral deposits, or small debris can clog the aerator over time, which results in low water pressure. To restore water flow due to a clogged aerator, use pliers to remove the aerator from the faucet, scrub it with an old toothbrush and rinse in water.
Low pressure in a shower can be caused by several issues such as a clogged showerhead, a worn-out mixing valve, closed valve, leaking pipe, or even a faulty water heater.
Find the spigot closest to your source of water. Make sure all the taps and other water uses are turned off in your house. Now turn on the spigot and see how long it takes to fill the bucket. Dividing the number 60 by the time to fill the bucket will give you the gallons per minute number.
Normal psi for a home pipe system is between 30 and 80 psi. While you don't want the psi to be too low, it violates code to be above 80. Instead, you should aim for a psi that's between 60 and 70.