Installing a New Shower Unit
Below is a MRR and PLR article in category Home Family -> subcategory Home Improvement.

Installing a New Shower Unit
Introduction
Installing a new shower unit is a task that requires careful planning and meticulous execution. The process typically involves three main steps: framing the walls, setting up the plumbing, and finishing the walls. Here's a detailed guide to help you with the installation.
Preparation
Begin by selecting the type of shower you want to install. Ensure it is compatible with your existing water system and can safely regulate water temperature through the boiler. Modern shower units are generally adaptable to various water pressures, like stored hot water and cold mains. Consider water pressure, piping layout, and drainage planning for the shower as essential factors.
Types of Shower Units
1. Push-on Mixer: This affordable option connects the hose and spray to the bath tap. It’s easy to install but has fragile hose connections and inconvenient temperature adjustments.
2. Bath/Shower Mixer: Combines a bath mixer tap with a spray hose, offering a budget-friendly solution without extra plumbing. Temperature control remains a drawback.
3. Manual Mixer: Features a wall unit with a single valve connecting hot and cold water supplies. Though more expensive, it provides better temperature control but requires additional plumbing.
4. Thermostatic Mixer: Includes a built-in stabilizer for easy temperature regulation. It is the most expensive but offers superior convenience and safety.
5. Power Shower: Ideal for homes with a water supply from a cold water cistern and a hot water cylinder, this unit uses an electric pump for pressure and temperature control but isn't suited for direct boiler heating.
6. Electric Shower: Heated by electricity, it connects to a mains cold water supply. It requires a minimum pressure to operate and may struggle with water temperature variations, though some models offer seasonal settings.
Installation Method
Depending on your chosen shower type, ensure the shower head is positioned to avoid contact with bath water or base tray, or include a check valve.
1. Plan the Setup: Mark the positions for the shower head and controls, design the pipework, and plan the drainage. For electric showers, consider cable routes and switches.
2. Install the Unit: Follow the manufacturer’s guide to fit the shower control.
3. Prepare Water Supply: Shut off the water before fitting supply pipes. Use waterproof coverings and isolating valves for protection and conceal pipes within the wall for a tidy look.
4. Set up the Base and Fittings: Install the shower tray, head, and other fittings.
5. Connect and Test: Attach the shower control to the supply pipes using appropriate adapters, reconnect the water supply, and check for leaks.
6. Electrical Installation: For electric showers, ensure the power is off before connecting. Follow the manual, then restore the power.
Adjusting Water Pressure
To improve water pressure, consider raising the cold water reservoir or installing a booster pump. Ensure these are properly connected to the power supply.
Piping and Drainage Tips
Use 15mm diameter pipes, keeping them short and straight to maintain pressure and minimize heat loss. Avoid using elbows by bending pipes to reduce flow resistance.
Common Mistakes to Avoid
- Ignoring local code restrictions.
- Using incorrect pipe sizes.
- Incorrectly connecting copper to galvanized pipes.
- Forgetting to use tape or compound on threaded joints.
- Not leveling fixtures during installation.
- Cutting supply stub outs too short.
- Misaligning tubing into fittings.
- Failing to bleed dirt and air from the lines after shutting off water.
By following this guide, you can ensure a successful shower installation that enhances your bathroom functionality.
You can find the original non-AI version of this article here: Installing a New Shower Unit.
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