One thing was shared by the owner: just three months after the new house was occupied, the façade of the bathroom began to see the water and the neighbor downstairs came to the door. When the tiles were smashed, the cold water pipe fractured the head and the water was flowing through the concrete layer. The shower was finally demolished, the tiles were smashed, the pipes were changed and waterproof bricks were remade, with a cost of $18,000 going forward and behind。
The owner also stated that it was only after moving in that room that the computer had been plugged in. Ask the broadband master to check, the wire in the weak case was not connected at all, and the electrician said, "i'll keep it for you," and it was just a setup。
Water and electricity rehabilitation is the least and least desirable step in the renovation. If anything goes wrong, it's not about repair, it's about smashing the floor。
Today, the water and power retrofit has been removed from the top to the bottom: prepositioning, material selection, construction process, acceptance criteria, photo bottoming. Do it, at least you won't get caught。
Part one: water and electricity: don't let the electrician decide for you
The first step in water and electricity rehabilitation is not to open tanks, but to turn the bottom. Designers, masters, hydroelectricists and owners must be present at the same time。
At the end of the day, we have to determine these things:
1. Location and height of all switch outlets
Don't just say "standard height". Standard heights are home to others, not you. The couch, the bed, the desk and the television cabinet were taken to the scene in advance and in good size. The bed head plug is 10 cm higher than the bedside cabinet; the couch side plug is higher than the arm; and the desk plug is above the desktop。
Electricity requirements per room
A list of electrical appliances in the kitchen (water purification, garbage disposal, dishwashers, ovens, steam tanks); bathrooms (smart toilets, electric hot towel racks, wind blowers); whether or not to leave a shoe dryer or a ground sweeper。
3. Weak points
The television wall leaves at least two links (televisions and games) to each bedroom to the internet and the library to the internet. If you do the whole house wifi, make sure the ap panels are located in advance。
Waterfalls
Cold and hot water pipes under the kitchen sink; cold and hot water from the bathroom wash basin; cold and hot water from the shower area (15 cm apart and 90 - 110 cm height); cold water pipes from the toilet; cold water pipes from the balcony washing machine (pre-burial wires if mounted on walls)。
The pits at this stage:
The owner's not there, so let the electrician decide. The electrician will only stay as a common practice, without considering the size of your couch and where you're used to charging. Take a video of the whole time. Who said anything to leave evidence。
Part ii: material selection — genuine identification of pipe cables
The renovation company's offer list, which contains the “great star water pipe” “far east wire”, is actually authentic and needs to be seen。
How to choose the pipe:
1. Material selection ppr
Ninety-nine per cent of household pipes use pprs, and no need to listen to stainless steel or copper pipes。
2. Brand recognition
Wei sing, il fong, ginde, united, china, are all mainstream brands. It's important to check the security codes on the official web。
3. Wall thickness yes. Look
At least 3. 4 mm wall thickness (s3. 2 series) and 2. 8 mm cold pipe. Many renovation companies use cold water pipes as hot water pipes with insufficient wall thickness and hot water is prone to ageing and bursting. Remember, it's not expensive to use hot water pipes all over the house。
4. Spare parts are also critical
Bending, three-way, straight-heading, insider-wires, which account for more than 40 per cent of total pipe costs. If only the pipe brand was written and the spare parts were not written on the quotation, the probability would be that the additional parts would be used and the interface would be the easiest to leak。
What about the wire
1. Branding
Pandas, far east, upper, upper, delisi, jung-tae are all big brands。
Radius
Lighting, general plugins, 2. 5 square millimetres; kitchens, bathrooms, air conditioning, electric water heaters, 4 square millimetres; central air conditioning, or heat water heaters, 6 square millimetres. Don't use 2. 5 in the house. Power-driven appliances jump。
3. False identification
Look at the copper core color, purple is the best, yellow is copper. Weight, 2. 5 m2 of approximately 3. 2 kg, is too light to have sufficient linear diameter. Fire extinguishers are used to burn the skin, flame-retarding wires are removed from the source and ordinary plastics continue to burn。
The pits at this stage:
The quote in the quotation, "the water line is branded as the same product," is an opening for you to change the billboard. Dead brands and serial models must be written, such as “welstar ppr hot water pipe s3. 2 series”。
Part iii: construction process - top or ground? Straight or right
Water or ground
Straight to the conclusion: the pipe goes up, the wire goes down。
The benefits of top-of-the-pipes: if the water leaks, the water drops down, you can see in the first place that the floor doesn't go down. Nor does maintenance have to be done by smashing bricks. The disadvantage is to spend more on materials (about 20-30 per cent more)。
Pipes go to the ground: provincial material, but you don't know, when you find the door downstairs or when the floor is drummed, the ground has been bubbled for a long time. The bricks were smashed and waterproofed, spending 10 times more than the cost of the material saved。
The waterways must therefore go up, along the corner of the wall or within the ceiling, and be fixed every 50 to 60 centimetres. The hot water pipe is outside, and the cold water pipe is inside, with a distance of more than 15 cm。
The top of the circuit or the floor
It's all right. Ground catheters, with cement on them. Pay attention to the separation of power and power: power (wire) and power (grid, television) are 30 cm apart. If strong and weak electricity intersects, the weak tube is shielded at the intersection。
Straight or right
The company likes to be smooth and smooth, but it has a lot of bends and lines and can't move at a later stage, and the materials are expensive。
The point-to-point (the shortest line between the two points) saves material, has less bends and is easy to pull out later. But the wire was finally covered with cement. Who could see it
Remember, the live-line process is more important than good-looking. All the wires in the tube need to be “spreadable, swapped”. Take a swipe at the check-up to see if it's free。
The pits at this stage:
Water and electricity are the same, power and power are the same. For the sake of economy, the water lines go by the same tank, or the powerful and weak share a wire box, which is seriously disrupted. Must be separated。
Part iv: acceptance standards — pressure testing and electrical testing
When the water and electricity are finished, don't rush the sink。
Waterway inspection:
1. Pressure testing
The pipes were installed and all exits were blocked and pressured from the household surface. Pressure was applied to 0. 8-1. 0 mpa (8-10 kg) for 30 minutes. Pressure reduction does not exceed 0. 05 mpa. When the pressure is pressed, check all the connections, wipe the dry tissue around and see if there is any water seepage。
2. Water access tests
When the pressure is sufficient, open all the taps and check whether the water from each outlet is smooth and cold and hot (cold water to the right on the left)。
3. Drainage testing
A bucket of water is poured into every leak, into the toilet and into the sink to see if the water is smooth and anti-water。
Circuit inspection:
1. Electrification tests
A phase detector (one in ten dollars) is inserted in each of the outlets to see if the connection is correct - the right-hand left fire。
2. Insulation resistance tests
Volatility (insulation resistance tester) measures insulation resistance between wires and between wires to the ground, at least > 0. 5 mega-eu. Many of the renovation companies did not do this, but it was important to detect whether the wires were broken or whether there was a leak in the connection。
3. Online testing
Check each gateway for 8 cores。
The pits at this stage:
The pressure's only five minutes, and the pressure's dropping. Or do not check the interface while pressing, just stare at the pressure sheet. It was only after closing the chute that one of the encounters was slowly seep, and the walls were bubbled。
Part five: taking a photo to the bottom -- these are all the holes that follow
The most important thing before the water and electricity tanks is to take pictures and video。
On the four corners of the room, the water and electricity lines of each wall were clearly projected. In particular, the position of the switch in the bottom box, the part of the pipe interface, the point where the power of power intersects。
After the photo was taken, it was stored in a mobile phone, a computer, a cloud, at least three times。
Why take pictures
Later, they will need to be poked in the walls by a peg, a wall, a bathroom cabinet and a kitchen shelf. Turning out the photos, you can see which area has a pipe wire to avoid the holes. If you don't take a picture, a drill goes down through a pipe and a water curtain hole downstairs。
The pits at this stage:
It'll be deleted, or it'll be partial. To take the panorama, at least four to five different angles of each room can see the direction of the pipe and the size of the wall。
Water and electricity renovation is the most time-consuming phase in the renovation. One more day in the front and 10,000 less in the back。
Interaction:
What pit did you step on while you were working on water and electricity? Or are you preparing the water and water for the bottom? It's coming out of the comment section
