Bathroom decoration, knowing the roots, preventing the bathroom, hydropower construction, being deceived

It's common to see people online complaining about financial losses during home renovations. Choosing the right workers or a decoration company is similar to finding a partner—you either have a smooth and happy life together, or you end up with many problems like water leaks, unstable voltage, and more. For most of us, we only get one chance to renovate our homes in a lifetime, so it’s crucial to be extremely careful, especially when it comes to bathroom plumbing and electrical work. These aspects are not just important for daily use, but also for your safety. Understanding the basics of bathroom renovation can help you avoid being scammed. Part 1: Issues with Water Pipe Installation Water pipe renovation is the most critical part of any home improvement project, much like nerves and blood in the human body, giving life to your home. Before installing the pipes, you need to determine the positions of all water outlets—such as sinks, toilets, and washing machines—and choose high-quality materials for the water supply pipes. Common Problem: Poor Water Pipe Direction Many homeowners and contractors install water pipes on the floor to save materials and time. While this may seem cost-effective, it makes future maintenance difficult and increases the risk of damage, as pipes buried underground are harder to access and repair. Anti-Fraud Tip: Run Pipes from the Top To ensure safe plumbing, always use standard, qualified pipes and fittings, and follow proper installation guidelines. All water pipes should be pressure-tested after installation. Although routing pipes along the ceiling or walls may increase material usage slightly, it makes future repairs easier and more efficient. Remediation Plan: Pay Attention to Pressure Tests If possible, remove and rebuild any non-compliant or substandard installations. Follow the correct pressure test standards: for metal and composite pipes, the test pressure should be 0.6MPa, held for 10 minutes, with a pressure drop no more than 0.02MPa and no leakage. For plastic pipes, the test pressure should be 0.8MPa, held for 20 minutes, with a pressure drop no more than 0.05MPa and no leakage. Part 2: Drainage Pipes Need Proper Waterproofing Drainage pipes are systems that collect and discharge wastewater, sewage, and rainwater. During renovation, waterproofing is often more critical than other elements. What should you pay attention to when installing and using these pipes? Common Problem: Blocked Drains Poor quality pipes and fittings, lack of pre- and post-construction checks, and improper pressure testing can lead to blockages or leaks. Debris entering the pipes can also cause issues. Anti-Fraud Tip: Check Drainage Flow Use standard, qualified materials and follow construction specifications strictly. After installation, perform pressure tests to ensure there are no leaks. Make sure valves and faucets are installed correctly, operate smoothly, and allow for unobstructed water flow. The water meter should also function properly. Remediation Plan: Dismantle and Rebuild If conditions allow, dismantle and reconstruct any non-compliant sections. Ensure that valves and meters are placed in convenient or discreet locations, depending on the space. Part 3: Be Careful with Electrical Wiring and Sockets Electrical sockets are a key part of wiring installation. Don’t underestimate the importance of their placement, the wires used, and whether they’re installed correctly. Common Problem: Inconsistent Wire Colors In some cases, the colors of wires in the same house don't match. This can make future repairs difficult and complicate the identification of different types of cables. Anti-Fraud Tip: Use Uniform Wire Colors Follow electrical construction standards: phase (live) wires should be consistent, neutral wires should be blue, and ground wires must be yellow-green. For single-phase sockets, connect them according to the "left zero, right live, middle ground" or "top live, bottom zero" principle. Air conditioners typically use three-prong plugs. Install sockets with protection switches in areas accessible to children, and use waterproof sockets in bathrooms and laundry rooms. They should be installed at least 1 meter above the ground and away from water sources. Remediation Plan: Ensure Correct Installation Location The grounding wire connection and the position of live and neutral wires must comply with construction standards. The leakage switch should be sensitive and reliable. Make sure strong and weak power sockets are correctly positioned and check the power supply carefully. Part 4: Pay Attention to Electrical Acceptance Electricity is essential in modern life, but if the electrical work isn't done properly, it can lead to serious consequences. Here’s what you should watch out for. Common Problem: Confusion Between Strong and Weak Electricity Check whether all wires in the same room have consistent color coding and whether the junction boxes are correctly installed. Ensure that the ends of strong and weak wires are left at least 15–20 cm long and that they are separated to avoid interference. Also, verify that TV, telephone, and computer lines are properly isolated. Anti-Fraud Tip: Keep Strong and Weak Wires Separate Make sure the sub-pipes for strong and weak electricity are in the right place and that the bends are naturally formed by the spring. Remediation Plan: Fix Issues Immediately If possible, remove and re-install any non-compliant or substandard work. The homeowner should be present during water and gas inspections, and any issues should be addressed immediately before re-inspection. Understanding the basics of bathroom renovation can help you avoid costly mistakes. I hope this guide helps you during your next renovation.

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