1、衛生間地面先做找平
要更換衛生間的地磚，在將原有地磚鑿去之后，一定要先用水泥砂漿將地面找平，然后再做防水處理。這樣可以避免防水涂料因薄厚不均而造成滲漏。
To replace the bathroom tiles, floor tiles after the original chipped away, be sure to leveling the ground with cement mortar, and then do water treatment. This avoids waterproof coating due to uneven thickness resulting in leakage.
2、接縫處要涂刷到位
衛生間墻地面之間的接縫以及上下水管道與地面的接縫處，是最容易出現問題的地方。您在施工中，一定要督促工人處理好這些邊邊角角的地方，所有防水涂料一定要涂抹“到位”。
Seams and down the water pipes at the seams with the ground floor between the bathroom wall, is where the most prone to problems. You are in the construction, we must urge the workers deal with these corners where all waterproof coating must be applied "in place."
3、墻面處理也很重要
一般的衛生間防水處理中，墻面上也要做大約30厘米高的防水涂料，以防積水洇透墻面。但如果是衛生間的墻面是非承重的輕體墻，就要將整個墻面涂滿防水涂料。
Toilet water treatment in general, has to be done on the wall about 30 cm high waterproof coating to prevent water bleed through the wall. But if it is a non-load-bearing walls of the bathroom wall light body, we should be painted with waterproof paint the entire wall.
4、防水實驗一定要做
衛生間施工完畢后，將衛生間的所有下水堵住，并在門口砌一道25厘米高的“坎”，然后在衛生間中灌入20厘米高的水。在24小時后，您再檢查四周墻面和地面有無滲漏現象。
After construction is completed bathroom, toilet blocked all the water, and at the door assemble a 25 cm high "Hum", and then poured into 20 cm high water in the bathroom. In the 24 hours after your four weeks and then check for any leaks in the walls and floor phenomenon.
5、保持下水通暢
衛生間中所有的下水管道，包括地漏、衛生潔具的下水管等，都要保持通暢。
All bathroom drains, including floor drain, sanitary ware under the water, they have to keep them open.