First, the power distribution line should be completed, and then the ground trough, I think it is more appropriate to let the water and electricity installation, in case of their own connected water pipe seepage is not very good.
From the point of view of PPR pipe connection is: hot melt connected. The hot melt temperature is 260 degrees. From the dimensions of your assembly, it is necessary to refer to the dimensions of your design scheme. It has to be designed according to your home. General PPR can not go bright, a bright PPR to change the force, two bright PPR random aging. 3. If it is white PPR, it is easy to produce light-growing pathogens. And they all suggest dark compresses.
PPR water pipe can also be connected by hot melt socket, pipe and pipe thoroughly integrated, joint compressive strength even exceeds the strength of the pipe body, as long as the project construction is appropriate, according to the pressure test after the end, high reliability.
PPR tube afraid of long-term sunlight, so the assembly can be moderately with foam insulation condom, with 3.4 thick hot water pipe, so it is more durable. Natural PPR tube also need to choose a big name, recommended to use Taurus or Nishifeng.

Procedure For installing a PPR pipe
1, after the admission of hardware, by the owners and workers together with the project acceptance. Water pipe as far as possible to choose famous brand raw materials, but beware of counterfeit goods, there are anti-counterfeiting logo friends can phone number inquiries, don't forget to check the certificate of new products.
2, hot and cold alternate pipe assembly should be left hot and right cold, the interval is not less than 30mm. Take a pen to fix the metal hose card position, the interval between two points is not less than 800mm, and then use the impact drill to punch holes on the choice point.
3. Screw the metal hose clamp. After nailing the wooden wedge in the hole, nail the metal hose clamp screw on the wood wedge. Be sure to nail the screw closely into the wood wedge to avoid loose.
4, according to the precise measurement of better specifications to carry out hot melt. If the temperature is kept at 260℃, the wall thickness will be scalded and deformed easily if the temperature is too high. Immediately connect the water pipe with the pipe joint 5-7 seconds after hot melting to ensure that the fusion ring is closely connected.
5. Release the tightly connected water pipe, tighten the pipe hoop with screw knife one by one, pay attention to the stress point at the corner, and the branch pipe must be screwed firmly. Valve installation position should be appropriate and neat (calculated tile parquet thickness), conducive to application and maintenance.
6, all plug sealed, with electric pressure test pump to measure the water pressure of 8-10mpa, half an hour later to see the barometer, the normal situation is the pressure drop of 0.05mpa, the standard. If it is not up to standard, it is likely that there is something wrong with the pipe, or the pipe connection is leaking.
7, all plug sealed, with electric pressure test pump to measure the water pressure of 8-10mpa, half an hour later to see the barometer, the normal situation is the pressure drop of 0.05mpa, the standard. If it is not up to standard, it is likely that there is something wrong with the pipe, or the pipe connection is leaking.
8. Wrap the raw tape around the silk buckle of the plug to avoid water seepage, and then twist the plug tightly. Inserted into the wall and road pipes should be treated with rust prevention and protected by mixed mortar.
9. All water pipe paving projects shall be accepted by the customer or the project supervision project, and the water pipe paving shall be horizontal and strong. Whether the distance between hot and cold alternating water pipes is up to standard and there is no leakage.