How To Remove Flow Restrictor From Delta Kitchen Faucet: Step By Step Guide

To conserve water, flow restrictors lower the amount of water that flows through your taps. These minor impediments, on the other hand, might obstruct the flow excessively, compelling you to eliminate them.

Reduced flow Delta kitchen faucets may be aggravating. After all, having enough fluid pressure makes many culinary tasks much simpler. The step-by-step instructions below will show you how to remove the flow restrictor from the faucet and enhance the water flow.

Flow Restrictor

To limit the flow of water, flow restrictors are installed on bathroom and kitchen valves. Conserving water is essential. Furthermore, water flow dampers function as aerators, reducing flow. You must disconnect the flow restrictor from the delta kitchen faucet if the volume of water is too low during cleansing and washing duties.

Why Do You Need Flow Restrictors?

Because water is such a valuable resource, governments introduce law requiring flow restrictors on faucets. Everyone benefits from conserved water. A standard tap with a restrictor uses only half the amount of a tap without one, which can be five or six liters per minute. Restrictors not only conserve water, but they also save energy indirectly thus, lowering your bills.

Besides, with a restrictor installed, the water pressure from your faucet increases without increasing your water use and, reduces wastage from splashing around in the absence of restrictor aerators. Restrictors, like aerators, filter out small particles in your water.

The pressure on your appliances and pipework can be affected if you don’t regulate the flow of water in a household, the water pressure from a city water line may be far higher than the faucet or appliances can withstand, which could damage the pipes and machines. A restrictor saves you from all of these concerns.

Faucet Flow Rate

The optimum flow rate of water from the faucet is reduced by a faucet aerator. As per Home Water Works, the typical kitchen faucet aerator seems to have a flow velocity of 2.2 gallons per minute. Flow sensors are needed on all new faucets manufactured since 1994 to save water. Aerators and flow restrictors, which raise or reduce the flow rate, can be bought.

Because the openings in aerators and circulation restrictors can clog with silt throughout time, cleansing or replacing them is preferred over removing them permanently, and this will typically fix any low pressurization issues you have. Hard water, for an instance, can cause restrictors to jam. The procedure of eliminating an aerator and flowing restrictor is often comparable across brands, thus removing a Moen flow restrictor is equivalent to removing a Delta flow restrictor.

What Causes Low Water Pressure in Kitchen Faucet?

If the faucet in your kitchen or bathroom is running slower than usual. The aerator should be checked first. The most obvious indicator of a blocked aerator is low pressure, but the faucet could also deflect water, shooting it onto the side of the sink or even the vanity.

It is likely to get plugged. The aerator gathers sediments and mineral scales over time, limiting water flow. This build-up eventually results in a diminished or distorted water flow. In some cases, an insufficient water supply can cause low water pressure in your kitchen faucet.

A damaged pressure regulator is another typical reason of low water pressure. You’ll need a professional plumber if anything is broken or damaged. But often the low water pressure can be repaired easily by oneself.

How to Adjust the Water Flow in the Kitchen Faucet?

Low water pressure faucets do not function regularly, whereas the ones with high water pressure waste water and energy. You may regulate the water pressure for each faucet in a variety of ways. Cleaning the aerator, rinsing the filter, or flushing the water supply pipes are all recommended ways to increase pressure. You can also adjust the pressure by fine-tuning the shut-off valves.

Dripping faucets and quickly running out of hot water signal that your system’s pressure is too high. Reduce water pressure by turning the valves clockwise. When the water pressure is too high, move the valves clockwise by a quarter turn to reduce the pressure. If you turn one of the valves, make sure the other one is turned in the same amount. When you’re done, your faucet should runc as good as new.

Why Should you Remove the Flow Restrictor from Delta Kitchen Faucet?

The flow restrictor is just a filtration or net connected to an aerator. It contains several apertures that divide the water flow into separate streams, allowing more air to enter and assisting in the perception of the needed water force.

The flow restrictor keeps the water from splashing out and gives it a form as it emerges from the faucet sprout. It aids in the creation of a stream that is straight and uniformly pressurized.

However, owing to minerals or other residue or debris in the water or pipes, this filter becomes clogged, lowering the water pressure.

To resolve this issue, we must first remove the flow restrictor from the kitchen faucet, wash it, and then reinstall it.

What you will need?

That does not necessitate the use of any specific plumbing equipment. Simply remove the aerator by turning it counterclockwise. Afterward, just push in the middle with your thumb to release the flow restrictor. Disconnect the washer and press a little harder; the screen will come out as well. It should be cleaned and reinstalled (Refer to the steps below). The process is easy but tricky.

  • Jar lid (towel or silicone) (basically to hold the aerator).
  • Configurable Screw or Pliers (required only if you can’t open them with your fingers).
  • Cordless drill.

All of the items listed here are optional. It may be necessary if your aerator has become stuck and will not open with your fingers.

Steps to Follow for Removing the Flow Restrictor

Just before we begin, keep in mind that flow restrictors are installed in all of the sinks for a purpose. In reality, most faucet producers integrate flow resistors in their products to comply with county and national plumbing regulations. As a result, we highly advise against removing and not replacing the current flow restrictor on your faucet.

Close all of the valves.

Ensure the hot and cold stream faucets under the basin are turned off. You should turn off your property’s steam valve anyway if you can’t seem to find the valves or it won’t shut off. This will switch off all water fixtures altogether. Switch on your kitchen faucet after shutting off the water to discharge any residual water.

The Faucet’s Core Should Be Opened

With an Allen wrench, unscrew the set screw at the base of your faucet handle counterclockwise. If you do not have one, Delta repair kits provide all of the necessary tools for basic repairs and maintenance. If a cap is covering the screw, a flat-head screwdriver may simply peel it off.

Observe the precautionary measures

There are several minor components in your sink that can easily be misplaced. To prevent any components from falling down the sink drain, place a cloth in it.

The aerator is the little piece at the end of the faucet stream. J just before you start removing the flow restrictor, wrap it with masking tape. As you withdraw the aerator, the tape stops the finish from being peeled off.

The Flow Restrictor Must Be Removed

by using slide joint pliers, grip the aerator and tighten its counterclockwise rotation. You may also turn it by hand, although smaller or stiffer dampers may be more difficult. Keep spinning it b manually till it comes to the end of your faucet after it’s flexible enough.

After that, you must detach the rubber washer from the aerator, which is a little rubber fitting within the aerator. You may now remove the flow restrictor from the aerator. 

Frequently Asked Questions

Inside a Delta kitchen faucet, where is the flow restrictor situated?

Ans. When the shower head is detached from the shower arm, flow restrictors are normally located in the collar or connected end of the shower head.

Is it tough to get rid of it?

Ans. Without a doubt, no. It’s certainly  the most comfortable and practical plumbing jobs you can accomplish.

Is it easy for the flow restrictor to break?

Ans. It relies on how much force you apply, as well as the quality of the product. If it’s made of plastic, be soft and cautious. If it’s made of metal, apply little pressure as well. If you’re cautious, it won’t shatter.


You may believe that removing a water flow restrictor will be difficult, but as you’ve seen, it is likely one of the simplest, most handy, and most pleasant plumbing jobs you can perform manually.

This will allow you to save money while simultaneously teaching you a new skill. Not only can you use this method to fix your kitchen faucet, but you can also use it to fix your faucet in your house. Since all faucets perform the same functions and are simple to clean.

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