How to check the direction of the poly pipe at home?

If the water and electricity pipelines of commercial housing are not changed, see the architectural drawings.

This can be obtained directly from the sales office or the property company where the housing developer is located.

If it is a second renovation, the home water and electricity transformation, the decoration company will send it to the original decoration owner, and the decoration company has files.

At this time, I will ask the decoration company for it.

If you can't find the original picture, you can first find the location of your own tap water main valve and water meter, and find the tap water faucet position in the kitchen and bathroom in the shortest distance along the vertical direction of the wall foot (don't tilt).