Unplasticized polyvinyl chloride eaves gutters and downspouts .

未增塑聚氯乙烯檐沟和落水管。

Discharge gutter downspouts properly , slope ground away from the house and seal foundation flaws and cracks-this will also help .

适当的疏通排水沟和落水管，房屋周围的斜坡和封好地基的缺陷和裂纹，这也是有效的方法。