What is exactly flow restrictor? If you carefully look at your kitchen or bathroom faucets, you will notice a filter or net that is attached to the aerator. The manufacturers of the faucets install these flow restrictors by default. The main function of the flow restrictor is to restrict the water flow, which in turn leads to saving water. Most of the countries have these plumbing requirements, as it saves a lot of water consumption. The water flow restrictor also shapes the flow by breaking the water stream into a lot of smaller parts. It also has to do with the water pressure that you get from your kitchen or bathroom faucets.
The most common problem with the water restrictors is that it’s prone to build-ups the hard minerals from the water and with time it restricts the flow of the water, thus reduces the water pressure in the faucet. This problem is common among a delta kitchen faucet, thus in this article, we will talk particularly about how to remove flow restrictor from bathroom faucet and kitchen faucet. The below step by step guide will teach you how to remove the flow restrictor from the faucet and how to increase the water flow.
Before the start of the process, I would like to remind you that as the flow restrictor is major plumbing requirement, it is not advisable to remove it, only to replace it.
Attention: According to Federal and State Law, since 1994, the manufacturers have to add flow restrictor to the faucet to conserve water.
How to remove flow restrictor from kitchen faucet?
Tools that you will need for this job:
Step 1: Close the Valves
The first thing you need to do is to close the shutoff valve to shut off the water supply to the faucet. Turn off both cold and hot water valves under your sink. Alternatively, you can do it from the main shutoff valve.
Step 2: Open the base of the faucet
Now you are going to lose the set screw at the faucet’s handle base by Allen wrench (move it counterclockwise).
Step 3: Remove the aerator
How to remove aerator from delta faucet? Turn the aerator also counterclockwise with the help of your hand. For this you don’t need any additional tools. Although you might need some towel if the aerator is slippery. It should get removed quite easily.
Tip: Delta faucets usually have the aerator concealed inside the faucet. For this very reason you will need wrench tool to remove it. If you don’t have one, you can buy one from Delta repair kits, which contains major tools for basic repairs.
You may want to close the sink with the water stopper because while unscrewing your faucet small details might fall down and you definitely don’t want to lose any of the smaller parts of the faucet in the process of fixing it.
Step 4: Remove the aerator’s rubber washer
The aerator’s rubber washer is the small rubber fitting inside the aerator. Pull the flow restrictor out of the aerator. After removing the aerator you will see the debris and particles above its screen. Make sure to clean it, as it might be one of the top solutions for delta faucet increase flow. If you push gently at the center of the aerator the flow restrictor will come out easily.
Now you have to concentrate and read the following text carefully: there are two screens of the restrictor. Make sure you remember the exact position (bottom and top) of the placement since you will have to place it back in exactly the same way. Now you need to clean all the parts, take a toothbrush for more careful and precise cleaning.
If you think you need new parts then make sure to take the old parts and bring them with you to the specialty store, so that the professional salesperson can quickly get you exactly the same particles. I truly not recommend trying to browse and look it up by yourself, because you might end up spending lots of time and money and getting it wrong as I did for the first time.
Step 5: Assemble the flow restrictor back
After you are done with cleaning the aerator and water flow restrictor (or maybe replacing it) you have to assemble everything back. Attach all the parts at their positions (as it was before), attach the aerator. Now turn on back the water supply and run the test. Don’t worry if you see the water running brown color for the first minutes, it’s the dirt from your pipes. Check the flow pressure, now it should be completely fine!