Removing Delta Monitor Bathtub Faucets: A Step-By-Step Guide

If you're looking to remove and replace your Delta Monitor bathtub faucet, you've come to the right place. This is a relatively simple task that can save you money on expensive repair bills and reduce your water bill. You'll need some common household tools, as well as a replacement cartridge, which can be purchased at your local hardware store. The process involves shutting off the water supply, draining the system, removing the faucet trim, unscrewing the bonnet, pulling out the old cartridge, and installing the new one. With the right tools and careful execution, you can get your bathtub faucet working like new again.

Characteristics of Removing a Delta Monitor Bathtub Faucet

Turn off the water supply and drain the system

To turn off the water supply and drain the system, start by locating the main water shut-off for your house. This is usually found in the basement of a house or duplex. There are two types of valves you may encounter: a ball valve or another style of valve. For the ball valve, grip the handle and rotate it clockwise until it has moved a full 90 degrees from its original position. If you have the other style of valve, grip the round handle and turn it in a clockwise direction until it is fully closed.

After closing the valve, open a nearby faucet to check if the water has been shut off. The water should slow down and stop running after 30 seconds. If the water doesn't shut off completely, return to the main shut-off valve and try again. Open the valve by turning it in a counter-clockwise direction, then shut it off again, this time applying slightly more pressure. If the water still doesn't shut off, it's best to call a professional to replace the valve.

Once the water is completely shut off, leave the faucet open. This will help drain any remaining water in the pipes once the shower cartridge is removed. It is important to ensure that the water is completely turned off and drained before proceeding with any further steps to avoid flooding or water damage.

If you are unsure about any of these steps or feel uncomfortable performing them, it is always best to consult a professional plumber or handyman. They will have the experience and expertise to guide you through the process or perform the necessary tasks safely and effectively.

Remove trim from the valve

To remove the trim from the valve, start by locating the set screw on the handle. This will be in a recess somewhere on the handle. In some styles, you'll need to remove the lever to access the screw. Once you've found the screw, you'll need to select the appropriate size of Allen wrench to insert into the hole. Wiggle the wrench back and forth to test if it's the right size; if it doesn't move at all, you've selected the correct size. If it moves without resistance, try a different size.

Loosen the set screw with the Allen wrench and remove the handle. Now, you can remove the chrome collar. Do this by gripping it and pulling it straight back while twisting.

Next, you'll need to remove the bonnet. Grip the bonnet with your hand and twist it in a counter-clockwise direction until it comes off. Be cautious not to use excessive force when removing the bonnet, as this could deform it. If needed, use channel locks to remove it.

With the trim removed, you'll now have access to the cartridge. The cartridge is the internal working part of the shower valve, and it may need to be replaced if you're experiencing leaks or a loss of water pressure.

Unscrew the bonnet

Unscrewing the bonnet of a Delta Monitor bathtub faucet can be a challenging task, especially if it is an older model with potential calcium buildup or corrosion. Here is a detailed guide on how to tackle this task:

Before attempting to unscrew the bonnet, it is crucial to turn off the water supply to the bathtub faucet. This will prevent any water leakage during the process. Once the water is turned off, open the faucet to release any remaining water pressure.

To begin the process of unscrewing the bonnet, you will need a few tools. Gather a strap wrench or a piece of rubber hose, as a regular wrench may not provide the necessary grip and could damage the bonnet. Additionally, have some hot vinegar, a propane torch, and a hacksaw nearby.

Start by wrapping the bonnet with wet rags soaked in hot vinegar. This will help loosen any calcium buildup or corrosion that is holding the bonnet in place. Let the vinegar work its magic for a few minutes. If the bonnet still seems stubborn, you can try heating it gently with a propane torch. Be cautious not to overheat or damage any surrounding components.

Now, use the strap wrench or rubber hose to carefully apply force in a counterclockwise direction to unscrew the bonnet. If it still doesn't budge, you can try using a gentle tapping motion with a wood chisel. Place the chisel against the outside of the bonnet and gently hit it counterclockwise. If necessary, try alternating the direction by gently tapping the ring clockwise without twisting the fixture. Always wear protective gear, such as safety glasses, to catch any debris or shards if the ring shatters.

As a last resort, if the bonnet is still not cooperating, you can try carefully cutting a line in it with a hacksaw. This will likely require you to replace the bonnet or the entire valve, so proceed with caution. If you feel uncomfortable at any point, it is best to call a professional plumber to avoid causing further damage.

Remove the old cartridge

To remove the old cartridge, first make sure you have the right tools for the job: in this case, you will need tongue and groove pliers or needle-nose pliers. You should also wear protective gloves if you have them. Now, locate the cartridge and grip it firmly with your pliers. Pull it straight back towards you, applying steady pressure and gently wiggling it up and down as you do so. You may need to use a little force to remove it, but be careful not to damage the surrounding components. If you are struggling to get the cartridge out, try using a pair of tongue and groove pliers or needle-nose pliers to help ease it out. Take your time with this step and work carefully to avoid causing any accidental damage. Once the cartridge is removed, set it aside safely, ready for disposal. Be sure to compare it to your new cartridge to ensure you have purchased the correct replacement. Now that the old cartridge has been successfully removed, you can move on to preparing and installing the new one.

Prepare and install the new cartridge

To prepare and install the new cartridge for your Delta Monitor bathtub faucet, follow these steps:

Firstly, take a small amount of faucet grease on your finger and carefully apply it to the o-rings of the new cartridge. This grease will aid in the installation process and ensure a proper seal. Next, identify the 'H' marking on the new cartridge, which indicates the hot side. When inserting the cartridge, make sure that the 'H' is facing the hot side of the valve body, which is on your left when facing the valve. Align the notches of the cartridge with the indents of the valve body. This step is crucial to ensure a proper fit. Once aligned, apply steady and gentle pressure on the cartridge until there are no visible gaps between the notches.

It is important to note that the cartridge is the internal working part of the shower valve. A faulty cartridge can result in continuous water leakage or a sudden loss of pressure. By replacing the cartridge yourself, you can avoid expensive repair bills and also reduce your water bill.

Frequently asked questions