Cinder Cone Project - Basement Polywall Waterproofing Part 3 

Great point about the backfilling. Ready to do my foundation and this will resolve the backfill challenge I was facing.

Would it be better to utilize a Y fitting rather than a 90 for the clean out pipe at the bottom? By using a Y fitting, you would be in a better position should you need to run a brush through the pipe.

Hello