Watch this video moving water to drain – https://youtu.be/UjplsNHj7JA
This video is about Removing pooling water from a flat roof. By cutting a channel into the roof and lowering the drain, you can slope the channel to allow water to flow to the drain.
0:00 Over 40 years old roof over gravel
1:05 Channel cut into the roof
2:00 Cutting Drain pot rim
4:50 Securing Roof with plates and screws
5:50 Installing liner in channel
8:36 removing Silver Coating with Torch
11:37 Installing membrane into the drain
15:10 Testing Channels effectiveness
16:00 End with Emotional Goodbye to friend