There may be two reasons for water leakage, one is the aging of the sealing ring; Second, the glass vacuum tube is broken and leaking.
Here are some specific solutions:
One: sealing ring replacement
1. Turn off the water supply and remove the tap handle.
2. Unscrew the packing nut and remove the nut and old sealing ring from the spool.
3. Install new sealing ring. If using a linear sealing material, wrap it several times around the spool. If it is a sealing material such as soft metal wire, only wrap around the spool.
4. Before reassembling the faucet, apply a thin layer of Vasan oil to the threads of the spool and the threads of the packing nut.
Two: Glass vacuum tube damage must be replaced, affecting the heat collection efficiency
1. The water needs to be drained
2. There is a rubber ring at the connection between the vacuum tube and the water tank, buckle it down (if it is very tight, you can soften it with hot water first, and then open a gap and pour dishwashing liquid into it)
3. Buckle the rubber ring and the tube can be taken off
4. Determine the length and diameter of the original pipe, and buy a pipe of the same specification in a solar energy specialty store
5. Put the rubber ring on the pipe, apply detergent to the pipe mouth, and insert the pipe mouth into the water tank
6. Place the tube head on the base of the support, and secure the rubber rings.