PROBOIL .4E User's Installation Manual page 19

9) Remove the inlet meshed filter seal
(H) from the boiler inlet (B) or inlet
adaptor (G), rinse the washer in cold
water, and use a toothbrush to clean
any debris from it. If meshed seal (H)
is compressed inside inlet (B) or
adaptor (G) then use a cocktail stick
(or similar) to remove it.
9. Whilst taking care, lift the PROBOIL.4E out from the cabinet and place it on the countertop.
10. 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.
11. Each bottle of PROBOIL descaling solution contains 200ml of descaling solution, one bottle should be enough to
descale the tank, however if you believe the tank to be heavily scaled or if you are unsure then use both the
200ml bottles supplied,
12. Shake the descaler bottle(s) thoroughly before use, cow cut the top from the bottle nozzle(s) using sharp
scissors.
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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