General toilet can have the space that sinks, all sorts of conduit are done, it is important to want to fill that part with thing finally even, this is backfill. Previously, bricks and cement sand were used, but now more and more people use this ceramic granule. The advantage of ceramic granule is that many people like it very much.Reasons for ceramic granule for bathroom use:1. Light weight: changzhou zhongjing self-insulation wall material co., LTD. Introduces the washroom with sink design whose thickness is generally 400mm to 450mm. If the weight of the material is large, it will lead to cracks in the floor, which is not conducive to waterproof. The adoption of ceramsite is to make full use of its light weight.2, moisture absorption: ceramic particles with micro porous ceramic granule inside, can achieve the role of moisture absorption, this is undoubtedly beneficial to the environment of the toilet.3. Easy to repair: because it is easy to dig, it is more convenient to construct with other materials for repair.4, bathroom with ceramsite reason: in addition, the adsorption and pollution cutting capacity of ceramsite is strong, good physical, chemical and hydraulic characteristics and other characteristics are suitable for the specific environment of the toilet filling materials.When backfilling the toilet with ceramsite, the following aspects should be paid attention to:1. Before light backfilling, the caisson shall be cleaned and the inlet and outlet pipes shall be fixed to avoid touching the pipes during backfilling. Construction should be mixed evenly, stratified pat solid, to prevent irregular settlement caused by waterproof layer cracking caused by leakage, do not allow the use of garbage or broken brick (except for the budget of broken brick).2. When the cask is backfilled about 4/5, cement mortar leveling shall not be less than 50mm. Compaction shall be carried out and a layer of steel mesh shall be laid under the leveling layer to prevent descending or empty drum.