The seepage of the external wall is mainly caused by the hollowing of the external wall. For the external wall seepage on the surface of ceramic tiles, the gaps between ceramic tiles should be repaired and compacted first, and then the external wall hydrophobic agent should be sprayed as a whole. The final effect is like water falling on the lotus leaf, which can't penetrate.
Generally, there will be cracks in the painted exterior wall, so it is necessary to repair the cracks and then make waterproof coating as a whole. After the completion, the walls seem to be renovated and more beautiful.
The seepage situation of the pit is complicated and needs to be determined according to the actual seepage situation.
This still needs to find the source of the leak first. Then we can deal with it specifically.
1) The concealed pipe joint is damaged and leaking.
Replace the joint and treat the local area near the joint with quick-drying cement (also called plugging cement and expansive cement).
2) or the surface of the strong body is not waterproof, and water enters from the cracks in the tiles.
First, clean the cracks in the tiles with tools. Anti-seepage agent milky white emulsion coated AB, mixed with white cement, ceramic tile cracks to re-joint.