7.3 Level measurement
Open the twist lock.
Pull the alarm probe (optional) and float switch out of the
brackets.
Immerse parts in a water bath for cleaning and wipe off
with a damp cloth afterwards.
Assemble the components again in reverse order.
7.4 Backflow preventer
CAUTION
Accumulated wastewater flows out!
Open the turn fastener.
Pull out the non-return flap.
Clean the non-return flap.
Check the components for wear and reassemble in
reverse order.
Check tank for heavy soiling, clean if necessary.
Do not use pointed objects.
Maintenance is completed.
EN
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