Please analyze how I run a public bathhouse.

1 It's ok if you're not an upstairs resident. 2. Find the water supply and drainage pipes. This room must be hot and waterproof. Hot spring irrigation can be underground, waterproof inside, insulated outside, or welded with steel plates. You can go to the hot spring and ask how many cubic meters a car is, and each place costs one price. 4. You can buy an environmentally friendly boiler for heating, and you can smoke gas when the big pool is cold. 5, groundwater can be used, but be careful, it is illegal to belong to the national source. Press the pump to make a hidden point.