The toilet needs backfilling. What kind of backfill material is the best? Why?

In the past, the bathroom floor in our house was made of wood. However, at this stage, a new form of bathroom has emerged, that is, sunken bathroom. When the sunken toilet was handed over, some of the backfill inside had been completed, and some had not. We will find that the floor of some bathrooms will be about 30 cm lower than the floor of the room. We call this bathroom a sink-box bathroom. So, what materials do you need to backfill such a bathroom? What should I pay attention to when backfilling? I will analyze it with you later.

Easy to sink. Moreover, construction waste has sharp edges and corners, which is easy to destroy the waterproof layer, or crush the pipeline below, and even the toilet floor collapses under the weight of solid construction waste. Therefore, some formal property companies prohibit the use of construction waste backfill, repaint the floor to make it waterproof, and then test the water to make sure there is no problem before sticking bricks. After this, there is a double guarantee. Even if we take 10,000 steps back, the road above is waterproof and leaking, and there will be no water below, which will flow into the drainage pipe with the slope!

With the observation hole, it is particularly convenient to maintain, and at the same time, there is no large amount of filler, which also reduces the bearing capacity of the bathroom itself. But the raised floor will be the habitat of rats and cockroaches, which is also very terrible. New backfill material for toilet. One of the materials used in toilet decoration and backfilling is ceramsite, and many owners have chosen ceramsite for decoration. Its advantages are good odor absorption and water absorption and relatively light weight. Suitable for toilet backfilling. Fill at least 15cm with sand first, add water to make the sand settle to protect the waterproof layer, then backfill with construction waste soil or cement, and finally fill the gap with sand, but pay attention to the dense filling, and it is best to wait for a period of time (a week later) before laying bricks. Backfill that can be used can be broken quickly, and it can be used if it is broken outside the bathroom and the size is roughly the same. Be careful not to knock the broken bricks after backfilling, which is harmful to waterproof and PVC pipes.