Remove Retaining Clip and Old Cartridge — Remove and Identify the Old Cartridge
Part of project
How to Identify and Replace Your Delta Monitor Shower Cartridge (Old vs. New) · Step 4 of 7
In this video
Identify the U-shaped retaining clip at the top of the valve that holds the cartridge in place. Use a small flathead screwdriver or needle-nose pliers to pry the clip upward and pull it completely out of the valve body. If the clip is difficult to remove, try pushing the cartridge further into the valve to relieve pressure on the clip. With the clip removed, firmly grip the stem of the old cartridge with a pair of pliers and pull it straight out of the valve.
Goal: Extract the old shower cartridge from the valve body.
- If the locking pin is stuck, push on the cartridge to release pressure on the pin, making it easier to remove.
Used in this video
- Small Flathead Screwdriver — Prying up the retaining clip.
- Pliers (Pliers_Type: Slip_Joint) — Gripping and pulling out the old cartridge.
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FAQs
How do I confirm if I need the older gray RP19804 or the newer white RP46074 Delta cartridge before I start disassembly?
While some Delta handle styles can offer clues, the most reliable method is to remove the handle and trim plate to visually inspect your existing cartridge. Note its color (gray or white) and any distinguishing markings or numbers to ensure you purchase the correct replacement part.
The project lists several tools; which are absolutely essential for a successful cartridge replacement, and can I use basic alternatives?
You'll primarily need slip-joint pliers or Channel Locks for gripping the bonnet nut and a Phillips head or flat head screwdriver for the handle and trim screws. While specialized tools are listed, basic versions of these are often sufficient. Ensure your chosen pliers can provide a secure grip without damaging plastic components.
What should I do if I can't locate my main water shut-off valve, or if the water doesn't completely stop flowing after I turn it off?
First, check for an individual shut-off valve to your bathroom or shower, often found behind an access panel. If no such valve exists and the main shut-off is inaccessible or faulty, it's best to contact a professional plumber to avoid water damage and ensure a complete water stoppage before proceeding.
I've replaced the cartridge and reassembled everything, but the shower still drips, leaks, or has reduced flow. What could be the issue?
Double-check that the new cartridge is fully seated and properly oriented; the 'H' and 'C' markings usually align with the hot and cold lines. Ensure the bonnet nut is tightened securely, but not overtightened, and verify that all O-rings are in place and adequately lubricated with plumber's grease.
TranscriptHide
Auto-generated transcript. May contain errors.
Remove Retaining Clip and Old Cartridge — Remove and Identify the Old Cartridge
Part of project
How to Identify and Replace Your Delta Monitor Shower Cartridge (Old vs. New) · Step 4 of 7
In this video
Identify the U-shaped retaining clip at the top of the valve that holds the cartridge in place. Use a small flathead screwdriver or needle-nose pliers to pry the clip upward and pull it completely out of the valve body. If the clip is difficult to remove, try pushing the cartridge further into the valve to relieve pressure on the clip. With the clip removed, firmly grip the stem of the old cartridge with a pair of pliers and pull it straight out of the valve.
Goal: Extract the old shower cartridge from the valve body.
- If the locking pin is stuck, push on the cartridge to release pressure on the pin, making it easier to remove.
Used in this video
- Small Flathead Screwdriver — Prying up the retaining clip.
- Pliers (Pliers_Type: Slip_Joint) — Gripping and pulling out the old cartridge.
Frequently Asked Questions
How do I confirm if I need the older gray RP19804 or the newer white RP46074 Delta cartridge before I start disassembly?
While some Delta handle styles can offer clues, the most reliable method is to remove the handle and trim plate to visually inspect your existing cartridge. Note its color (gray or white) and any distinguishing markings or numbers to ensure you purchase the correct replacement part.
The project lists several tools; which are absolutely essential for a successful cartridge replacement, and can I use basic alternatives?
You'll primarily need slip-joint pliers or Channel Locks for gripping the bonnet nut and a Phillips head or flat head screwdriver for the handle and trim screws. While specialized tools are listed, basic versions of these are often sufficient. Ensure your chosen pliers can provide a secure grip without damaging plastic components.
What should I do if I can't locate my main water shut-off valve, or if the water doesn't completely stop flowing after I turn it off?
First, check for an individual shut-off valve to your bathroom or shower, often found behind an access panel. If no such valve exists and the main shut-off is inaccessible or faulty, it's best to contact a professional plumber to avoid water damage and ensure a complete water stoppage before proceeding.
I've replaced the cartridge and reassembled everything, but the shower still drips, leaks, or has reduced flow. What could be the issue?
Double-check that the new cartridge is fully seated and properly oriented; the 'H' and 'C' markings usually align with the hot and cold lines. Ensure the bonnet nut is tightened securely, but not overtightened, and verify that all O-rings are in place and adequately lubricated with plumber's grease.
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Video Transcript
(462 characters)Transcript may be auto-generated and contain errors.