One of the most common causes of low pressure to a kitchen or bathroom sink faucet is debris or mineral buildup in the
The aerator is the first to check when a faucet has low water pressure. Most faucets have aerators at the base or inserted inside the spout. Sediments, mineral deposits, or small debris can clog the aerator over time, which results in low water pressure.
A fast drop in only one faucet means there's a problem with the faucet. Rapid low pressure affecting one area of the house may mean a corroded pipe issue. An abrupt water pressure drop affecting the whole house may mean a water main break (municipal water) or a well pump problem (well water).
Install a Water Pressure Booster
If the municipal water or well-water flow is the problem, hire a licensed plumbing contractor to install a water-pressure booster pump. These powerful, electric pumps target incoming pressure and raise it to the proper level.
An outdated fixture is one of the most common causes of low water pressure homes. Old galvanized steel water pipes can corrode so much that they significantly restrict the water flow. A build-up of mineral deposits such as sediments and limestone can obstruct the fixtures, preventing water from flowing freely.
Open your main water valve.
Your house has a main water valve, usually located near the meter; the valve controls the flow of water into your home's pipes. Find the valve and check to see if it's completely open. Opening a half-shut valve is one of the quickest ways for increasing home water pressure.
Pressure-Reducing Valve
Look on the main supply pipe near your water meter for a conical valve that has a bolt sticking out of the cone. To raise pressure, turn the bolt clockwise after loosening its locknut.
Signs that a cartridge faucet needs repair are water dripping from the spout, difficulty in adjusting the water temperature, hot water entering cold water outlets like toilet supply lines and inadequately heated water at some faucets.
Low pressure is the most common sign of a clogged aerator, but sometimes the faucet can also misdirect water, spraying it on the side of the sink or even onto the vanity.
Your faucet cartridge sits deeper in your faucet than your aerator and has a hole through which water passes. These cartridges become clogged or blocked by hard water build up which produces low water pressure in kitchen faucets. Often, they just need to be cleaned. This is another relatively easy DIY fix.
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.
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.
It's recommended you replace the aerator annually, and then clean the aerator twice a year. If the aerator appears to need frequent cleaning or becomes worn, the aerator may need to be replaced more often. Lead from fixtures, soldered joints, or pipes can get into your water.
The average cost is about $3–$5. If the old aerator is the size of a dime, you will need a junior-size aerator. The average price is $4–$8. If the aerator is quarter-size, you will need a regular-sized aerator at about $3–$6 each.
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.
The cartridge is located inside the faucet and controls the flow of water. If it becomes clogged, it can restrict water flow, resulting in low water pressure. The cartridge may be clogged because of a build-up of minerals, soap scum, or other debris.
Blocked or Broken Cartridge
From time to time, debris, hard water, sediment, and corrosion can build up in the cartridge, resulting in low water pressure. How to remove and clean the cartridge: Turn off the supply valves under the sink and turn on the faucet to release the residual water.
If the kitchen is the only tap with low pressure, it's time to consider the potential causes of low water pressure in a kitchen sink so you can determine what might be causing it, and fix it. The most common causes of low water pressure in a kitchen sink are a clogged aerator or a clogged cartridge.