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Prepare and Test Shower Valve — Install the New Delta Monitor Trim Kit

Beginner3 hours

Part of project

Delta Monitor Shower Faucet Installation & Replacement Guide · Step 4 of 5

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In this video

The installer begins by assembling the shower valve trim. They place the main escutcheon plate over the valve body, then use a power drill and a screwdriver to attach an adapter plate. The handle is then placed on the valve stem and secured by tightening a set screw with an Allen wrench. This preparation was done to test the plumbing connections before sealing the wall. However, a critical mistake was made by forgetting to install the cartridge's retainer clip.

Goal: Shower Faucet Repair (Standard)

  • The central mistake of the project occurred here: the retainer clip for the valve cartridge was not installed. This clip is essential for holding the cartridge in place against water pressure.

Used in this video

  • Power Drill (Tool Type: Power Tools, Power Source: Cordless) · optional — To quickly drive the screws for the adapter plate.
  • Screwdriver (Tool Type: Hand Tools, Power Source: Manual) — To manually tighten the screws securing the valve adapter plate.
  • Allen Wrench (Tool Type: Hand Tools, Power Source: Manual) — To tighten the set screw that holds the faucet handle in place.
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FAQs

What specific tools are essential for replacing a Delta Monitor shower faucet?

You'll primarily need a Phillips head screwdriver for trim removal and installation. A crucial specialized tool is an Arcan Hardened 3 in. Gear Puller AS3GP, which is often necessary for removing a stubborn old valve cartridge. Have penetrating oil and silicone grease ready as well.

What's the most important safety precaution I need to take before starting this project?

The most critical step is to completely shut off the water supply to the shower. This can be done at the main house shut-off valve or by turning off individual hot and cold water lines if available. Double-check that no water flows from the shower before proceeding to prevent flooding.

I'm a beginner. How difficult is this project, and how long should I expect it to take?

This project is classified as beginner difficulty, meaning it's manageable for those new to DIY. The estimated time for completion is around 3 hours. However, this can vary depending on the condition of your old faucet and any unexpected issues, so allow some extra time.

What should I do if my old shower cartridge is stuck and won't come out?

A common issue is a stubborn old cartridge. First, try applying penetrating oil around the cartridge base and let it sit for a few minutes to help loosen it. If it still doesn't budge, you will likely need to use a gear puller, such as the Arcan Hardened 3 in. Gear Puller AS3GP, to extract it safely without damaging the valve body.

Transcript
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this bathroom had to be done today no matter what and of course the worst thing possible happened it was the second day of the install meaning the shower walls were going up so before we do that I always like to make sure that all of my fittings are not leaking and I turn the water onto the shower valve the next thing you know the cartridge in the

Auto-generated transcript. May contain errors.