tefen MixRite 2.5 Manuel Utilisateur page 18

Subject
MixRite does not
draw additive.
MixRite makes
scratching noises.
Water flowing back
into additive
container.
Check
The suction filter is blocked.
Dismantle the pump unit and
check if the suction seal is
defective.
The non-return valve is defective.
Check if there is liquid in the
additive container.
Check if the suction pipe is
immersed and not folded.
Check suction filter to see if it is
blocked and if it is immersed in
the additive tank.
Check valve.
Solution
Clean the filter.
Replace the suction seal.
Replace the non-return
valve.
Add liquid to the container.
Straighten or change the
pipe.
Clean and rinse suction
filter. Fill liquid into tank to
cover filter
Clean or replace the check
valve.