Waterproofing first, then backfill.

Planning for the installation of appliances

The bathroom is first planned for the installation of appliances, with fine sand cement according to the location of appliances and floor drains to do a good job of running water slope.

Waterproof paint or waterproof slurry with tarpaulin

After planning, use waterproof paint or waterproof slurry with tarpaulin to glue or coat the wall 30 centimeters above the eye. Near the downpipe should also maintain a certain construction height waterproofing.

seepage water experiment

In the whole bathroom after blocking the drip and other sewer space put full bathroom to maintain the height of the doorway water, wait 1 to 2 days.

Observe that the level does not fall

Observe that the level does not fall, or go downstairs to check that there is no sign of leakage can be constructed floor tiles and ancillary facilities, at the same time to ensure that a variety of pipe interfaces waterproofing enhancement, sealed with cement paste.