The steps to drain water from underfloor heating are as follows:
1. First, close all water collector valves.
2. Use a wrench to remove the nut on the right side of the water collector drain pipe.
3. Place the water basin to collect the water, then open the main valve of the water inlet pipe, then open the water inlet valve of the first water distribution pipe and the corresponding outlet valve of water distribution. pipe.
4. Discharge the water into each water distribution pipe in turn until the outlet of each water distribution pipe from the water collector is hot, then you can stop discharging water. Finally, tighten the nut.