The fall is the wastewater (black water and grey water) evacuation column. It can be unique or separate; each solution has its advantages and disadvantages. This post tells you everything.
Plumbing System: Operation of Single Fall and Separate Falls
2 Most Popular Plumbing FAQs: (I) How to Maintain Your Water Heater (II) How to Repair a Leaking Faucet
How to Maintain Your Water Heater Keeping your water heater in good working order is the assurance of a good use of your appliance and savings on your energy bill. A water heater requires little maintenance, but it is important
Water Supply and Drainage in a Bathroom: Elements to Consider
Summary: Water supply in the bathroom: what to check Water supply in the bathroom: how to modify them Bathroom sewage disposal: what to check Getting the work done It is useless to have a nice tap or a nice shower