Balcony Dog Potty Systems: Where Does the Drainage Go?
Every guide to balcony grass forgets it is a balcony. Drainage onto the flat below, lease rules, weight and wind decide this before the surface does.
Apartment Dogs
Puppy Pads in a Small Flat: Odour and the Habit You Build
A pad in 40 square metres is not the same problem as a pad in a house. Placement, a tray, and a 24-hour change do most of the work. Plus the trade-off.