Secondly, , check whether the drainage is smooth, there is no leakage and reflux and water phenomenon, high-grade water supplies with or without scratches.
其次，检查排水是否顺畅，有无渗漏及回流和积水现象，高档水件用品有无划痕。
Repairing and recycling badly damaged concrete drainage pipe without digging liner is expained, good results are also introduced.
提出了采用不开挖衬管法修复、再生破损严重的混凝土污水管，并取得良好效果。
This Expansion Tank, like all Expansion Tanks, may eventually leak. Do not install without adequate drainage provisions where water flow will cause damage.
和所有的膨胀罐一样，这种膨胀罐终究可能会出现泄漏。如果没有适当的排泄预防措施就不要进行膨胀罐的安装，否则水流会导致损害。
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