10
Fig 8
The glass vacuum tubes are inserted into the holes in the underside of the
tank, and the bottom of the tube then retracted into the cradle, on the bottom
of the stand.
The vacuum tubes are made from strengthened glass,
however, caution is required when handling them to
avoid breakages.
CAUTION
Solar tanks are heavily insulated, and the tubes pass through an aperture in
the insulating foam, before engaging with the silicon seal fitted to the inner
tank of the Main Tank. Care must be taken when fitting the tubes to ensure
that no pieces of the foam are dislodged and pushed into the silicon seal with
the tube. This is a common cause of leaks in newly installed tanks.
