How to clean the old solar water heater
Vacuum glass tube of the solar water heater in the removal, first need to put the dust ring close to the water tank (O type rubber ring) can move down, before moving slightly with some water, it is easier to move down the dust ring, and then hold the vacuum tube clockwise to force
When the tail end of the vacuum tube is exposed to the tail exhaust pipe (the metal bracket of the vacuum tube at the bottom of the vacuum tube)
The lower part of the vacuum tube to lift up from the top of the top of the tail pipe, and then grab the vacuum tube to pull down, remember to protect the small tail of the vacuum tube, the place will be hit if the leak. If you are cleaning the vacuum tube, remember to change the water inside the white silicone ring, or re inserted after Water Leakage.