الخوف ان تتكسر مواسير الصرف بسبب الهبوط ويصل التسريب الى اسفل القواعد-مهندس عبدالغني الجند
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DIY plumbing basics. How to make a reliable clamp for repairing damaged pipes yourself. Tips and skills from an Experienced Plumber. Plumbing ideas and projects. A Beginner's Guide to Plumbing.