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Shut Off Water Supply — Shut Off Water Supply and Relieve Pressure

Beginner3 hours

Part of project

How to Replace a Leaky Shower Cartridge (Delta Monitor & Moen Models) · Step 2 of 6

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In this video

Locate the main water shut-off valve for your home, typically found in a garage, basement, or utility closet. Turn the valve handle a quarter turn so it is perpendicular to the pipe, which will close the valve and stop the flow of water to the house.

Goal: Plumbing

  • Confirm the water is off by turning on a faucet elsewhere in the house before proceeding.

Used in this video

  • Main Water Shut-Off Valve (brand: Unknown) — Shutting off the water supply to the entire house.
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FAQs

How difficult is it to replace a shower cartridge, and what should I expect for time and cost?

This project is rated as "beginner" and typically takes about 3 hours for someone with basic DIY skills. The main cost will be the replacement cartridge itself, which varies by brand (Delta or Moen) and model, usually ranging from $30-$80.

What specific tools do I absolutely need before I start this project?

You'll definitely need Phillips and flathead screwdrivers, an adjustable wrench, and tongue and groove slip joint pliers. Also, have a rag for drips and plumber's grease for new O-rings. Ensure you have the correct replacement cartridge for your specific faucet model.

What are the most crucial safety precautions I need to take before starting this cartridge replacement?

The most critical step is to completely shut off the main water supply to your house or specifically to the bathroom before starting. After shutting off, open a nearby faucet to relieve any remaining pressure in the lines. Protect your tub/shower finish from dropped tools.

How do I make sure I buy the exact right replacement cartridge for my specific shower?

To ensure you get the correct cartridge, first try to identify your faucet's brand (Delta Monitor or Moen) and model. Often, the old cartridge will have a model number printed on it; take a photo of it. If not, consult your faucet's manual or remove the old cartridge and take it to a plumbing supply store for identification.

Transcript
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neck. The first thing we're gonna do is turn the water off where it comes into the house. The shut-off can typically be found in your garage or your basement.

Auto-generated transcript. May contain errors.