1. Complete water solution: fill solar power with water. This solution is more suitable for southern regions where the temperature is not below 0 degrees. When using again, solar water should be added one day in advance after 10:00 p.m.
2. Water drain plan: Drain the water from the water tank, including the water from the pipes, and open the faucet of the solar hot water pipe in the room to keep the solar hot water pipe clear. water. This solution is suitable for northern regions where pipes are easily damaged by frost; However, this solution also has a big disadvantage, namely that the collector tubes of solar water heaters are prone to premature aging.
Note: When using it again, solar water should be added one day in advance after 10:00 p.m. in the evening or before 7:00 a.m. in the morning.