Common sense of sunken bathroom decoration

For sunken toilets, first clean the base layer to ensure that the ground is dry and level. Focus on brushing and waterproofing at the pipe wall, the foot of the wall, and the yin and yang corners; then backfill with carbon slag or ceramsite; then find the slope and level the cement mortar in the backfill layer. Finally, do the membrane waterproofing or coating on the leveling layer. After the waterproof construction is completed, all sewers in the bathroom should be blocked and a water injection test should be carried out. Check after 24 hours. If there is no leakage on the surrounding walls and ground of the bathroom, the waterproof quality of the bathroom is very good. Finally, paste the wall and floor tiles and joints.