PROBOIL .4E User's Installation Manual page 42

12. Take the ¼" blue flexible pipe (E) that caries the cold
filtered water output from the filter and rough out the
minimum amount of pipe needed to connect to the ¼"
x ¼" pushfit connector (F) found on the boiler inlet.
Mark the desired minimum pipe length with a
permanent pen.

We recommend cutting the ¼" blue flexible pipe
(E) at least 200mm longer than the required minimum
pipe length to allow the boiler to be serviced more
easily by your customer, otherwise remove
unnecessary/unneeded pipe length to keep the
installation tidy.
Cut the ¼" blue flexible pipe (E) to length cleanly and
squarely using a snip tool, sharp craft blade or similar.
13. Push the ¼" blue flexible pipe (E) fully and firmly into
the ¼" x ¼" pushfit connector (F).
14. Firmly and fully push the silicone outlet tube (K) over
the 8mm barbed stem x 3/8" male tap connector (L).
15. Screw the 8mm barbed stem x 3/8" male tap connector
(L) into the 3/8" female flexible 110°C hose tap
connector (X5)
⚠
you must ensure to use 3/8" the fibre seal (X5)
(supplied separately with the tap) is in this
connection.
⚠
WARNING: You must not directly connect the
tap hose (X5) directly to the boiler output (C). You
must always use output adaptor (J) and silicone
hose (K) to connect the tap.
PROBOIL.4E user & installation guide v1d 42