PROBOIL .4E User's Installation Manual page 23

15. Whilst taking care, lift the PROBOIL.4E out from the cabinet and place it on the countertop.
16. Tip the boiler upside down so the
boilers centre outlet (C) is over the
sink, you must empty the boiler as
much as possible of water and any
debris from the base of the tank, tip
the boiler back and forth gently to
hear how much water remains inside
if you are unsure.
17. Use only a non-aggressive infant sterilising
solution (for example "Milton"
concentrate). Always read the label
regarding the dilution

The total Proboil tank volume is
approximately 4 litres so for a 0.6% v/v Milton
concentrate liquid we suggest you require a
maximum of 24ml of concentrate (check with
the instructions supplied with the sterilising
solution used)
Carefully measure out the sterilising solution
then tip the required amount of the solution
into the centre boiler outlet (C).
18. Reconnect all the removed parts from the
boiler in the reverse order listed above.
(do not use a spanner or overtighten
connectors G or J)
19. Turn on the 98°C water using the Hotkey, keep the handle on until you see water exit the spout of the tap
then turn it off immediately.
PROBOIL.4E user & installation guide v1d

You can empty the boiler faster from the outlet (C) by depressing
the centre of the check valve insert found in the boiler inlet (B) whilst
the boiler is upside down using a blunt household object like a pencil.
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