How long to remove the cannibalization of the solar water heater tube
If you do not twist, you can first take off the beam at the bottom of the heat collection tube so that it can be directly down the screw and then do not have to screw up again and then screw down
Use loose rust to spray first, then twist. I can't see a new one.
Solar vacuum tube or pipe? Glass tube, then can be used to clean the water wet dust ring, and then slowly turn out!
