Certikin HD33 Instrucciones De Instalación página 2

Concrete Main Drain
(Part No: HD33)
Note: when installing main drain care should be taken to prevent
slurry and cement from settling in unit
Hydrostatic relief valve part
no CK34 or HD34 (not
included) it is important that
this fitting is clean and free
from grit. Check seating
before filling pool.
Concrete
pool shell
Hardcore gravel
under the pool
floor to act as
water collection
area
Collection tube part no HD35
(not included)
Ensure that fitting is
square and flush with
pool shell and finish
Make joint between main
drain and collection tube with
PTFE tape
Not to scale
Fitting must be so positioned that it
is proud of concrete by the
thickness of the pool finishes, ie.,
waterproof rendering and mosaic
or tiles (average 25mm)
For 1.5 BSP (40mm) connection
use part no HD9 screwed
reducing bush (see next page)
Puddle
flange