During the decoration, the problem of the resurgence of the bathroom wall tiles please ask the deco

Is the water pipe overpressurized after installation?

If the pressure is not tested, it is almost certain that the water pipe is seeping.

If you try to overpressurize,"The construction personnel take water by opening the plug of the water outlet on the wall to take water"It may also be the direct cause of re-seepage of water pipes (water seepage due to vibration of water pipes).

The construction unit can be required to rectify immediately, and the seepage should be solved in time, otherwise there will be endless troubles, and when the downstairs people come up, you still have to open the wall for maintenance.

It is impossible for water from the ground to penetrate into the tiles.

The tile absorbs very little water, and will only change color when it accumulates water.

It's not drywall.

It is possible that the water pipe inside the wall is leaking.

There is a simple detection method, let the plumber take a press machine to press, usually half an hour of kilograms do not drop the pressure (up and down is normal), if the pressure is lost, it is a water pipe leakage, if the pressure is not lost, it is another problem, and it is a separate investigation.

If you have done waterproofing, if you have it, it is the brick moisture resurgence, if not, take it apart and take a look at the wall.

It won't be a leak in the wall, you can rest assured, you are still in the renovation, and the workers take water from the faucet on the wall, which must have splashed the wall.

If the water pipes in your house wall are seeping water, the direction of the brick respawning and changing color should be in line with the route of your home pipes, rather than slowly walking from low to top.

Tell the workers not to plug the floor drain and save water. Generally, home improvement workers mix cement mortar in the bathroom.