Restore Water and Test — Turn Water On and Test for Leaks
Part of project
How to Identify and Replace Your Delta Monitor Shower Cartridge (Old vs. New) · Step 7 of 7
In this video
Turn the water supply back on, either at the local shut-off valves or the main valve. Slowly open the valves to avoid water hammer. Check the faucet for any leaks around the handle or from the spout. If there is a leak from the handle, you may need to slightly tighten the bonnet nut. Turn the handles on and off to test the operation and ensure the leak has been fixed.
Goal: Verify the repair and check for leaks
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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.
Restore Water and Test — Turn Water On and Test for Leaks
Part of project
How to Identify and Replace Your Delta Monitor Shower Cartridge (Old vs. New) · Step 7 of 7
In this video
Turn the water supply back on, either at the local shut-off valves or the main valve. Slowly open the valves to avoid water hammer. Check the faucet for any leaks around the handle or from the spout. If there is a leak from the handle, you may need to slightly tighten the bonnet nut. Turn the handles on and off to test the operation and ensure the leak has been fixed.
Goal: Verify the repair and check for leaks
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
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