A room with 5 inches of slab has no floor drain. A 2 inches diameter drain is needed. Has anyone tried successfully drilling the hole with a 1/3 inch drilling machine bit.. I mean you can't make a perfect hole where the pvc tube could be inserted.. can you just put sealant on the perimeter if...
For drains where there are pvc tube inside concrete.. what do you use for waterproofing to ensure water won't enter the sides (in between the pipe and concrete)? We usually use asphalt membrane enclosing the tube end on surface of drain but we can't use it in a particular case. Is there some...
