Faq - Harmopool ZFZX4920-P Manual

Sfera bobin sand filter
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FAQ

Problem
Flow too low
The system sucks too little
water
The pressure quickly
becomes too high during
filtering
The pressure changes too
much
Cause
The basket of the pump (pre-
filtration unit) is full
The pump runs in the reverse
direction
The pipes at the inlet are
clogged or partially clogged
The pH is too high
(turbid water)
Too little chlorine
The pump draws air
The suction valve is half closed
Solution
Clean the filter basket
Check the conduits of the pump
Clean the pipes of the inlet of the pump
Decrease the Ph (add Ph min)
Add chlorine
Check the density of the hydraulic
connections
Fully open the suction valve
13

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This manual is also suitable for:

Zfzx4930-pZfzx4945-pZfzx4960-p

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