How to clean scale inside solar water heater and how often should it be cleaned?

Clean once a year.

1. Tools/Materials

Solar energy and water.

2. Methods/steps

1. Carefully remove the dust seal ring on top of the header tube.

2. Remove the black collection tube.

3. Pour the water into the collection tube and pour out the scale at the same time.

4. Remove the rubber sealing ring inside the water tank mouth.

5. Remove large pieces of tartar.

6. Then rinse the scale from the water tank with plenty of water.

7. Install the rubber seal ring.

8. Install the collector tube.

9. Press the dust ring.