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6.5 Circulating pump does not start automatically
7. Check that the power line is under voltage.
8. Check whether the fuse is faulty.
9. In the case of an AC pump, check that the capacitor is OK.
10. Check that the motor is OK; have the coil checked by an electrician.
11. Check that the pump has not seized (the motor shaft can be freely rotated using a
screwdriver, otherwise item 6.4).
Caution: Only do this with the mains plug disconnected! Risk of injury!
12. Check whether the motor circuit breaker has tripped; if this is the case, refer to item 6.2.
6.6 Water leaks from the circulating pump between the pump housing and motor
3. Water may drip out at approx. 2 minute intervals during commissioning.
The dripping will stop on its own after a few hours' operation, once the mechanical seal
is run in.
4. If water constantly leaks from this point, the mechanical seal is faulty and
must be replaced.
6.7 Silica sand is washed from the filter into the pool
3. Wrong grit size (too fine). Special silica sand grit size of 0.4 - 0.8 mm required.
4. Filter foot in filter container damaged - replace.
6.8 Filter pressure on the pressure gauge does not return to initial pressure after backwashing
or initial pressure too high
4. Pressure gauge faulty - replace.
5. Silica sand hardened and/or lumpy - silica sand must be changed.
6. Suction or pressure line too low or valve closed.
6.9 Water not clear
2. Insufficient disinfection (chlorination) will overload the filter;
check chlorine and pH value for specified values and adjust.
2. Filter design too small.
3. Circulation time too short.
4. For a silica sand filter, use a flocculant if necessary.
5. Inadequate filter backwashes result in short filter service lives.
6.10 The swimming pool loses water through the filtration system
3. 6-way valve – gaskets faulty – replace.
4. Supply line from swimming pool leaking.
