每次搬家遭遇下水道反味，最终自学维修技能的个人经历
英文摘要
The author recounts that every time they move, they face sewer smell issues lasting days. Previous tenants apparently neglected such problems. When the author called Beike (a housing platform) repair services, they used low-quality materials that would fail again within days. Consequently, the author ended up learning complete sewer drainage repair skills and sourcing their own supplies.
中文摘要
作者讲述每次搬家都会遇到持续数日的下水道反味问题。前任租客似乎不在乎这类事情。叫贝壳维修人员来时，他们总是用最差的物料，修完几天就又坏了。最终结果是作者自己掌握了完整的下水道治理技能和采购供应链。
关键要点
Moving repeatedly leads to recurrent sewer odor problems that previous tenants ignored.
多次搬家都遇到下水道反味问题，且前任租客不在意。
Repair services by Beike used substandard materials, causing quick failure after repairs.
贝壳的维修人员使用劣质物料，导致修后几天就又损坏。
The author acquired full DIY sewer repair expertise and sourcing know-how out of necessity.
作者因需求掌握了完整的下水道维修技能和物料采购供应链。