Section Viii. Troubleshooting - Pentair Meteor 20 Owner's Manual

SECTION VIII. TROUBLESHOOTING.

Problem
Pool water not
sufficiently clean.
Higher filter pressure.
Short filter cycles.
Return flow to pool diminished,
low filter pressure.
Sand returning to pool
P/N • Núm/Pte. • Réf. 9 9 1 0 2 0 0 0
Cause
1. Pool chemistry not adequate to inhibit algae growth.
2. Too frequent a backwash cycle.
3. Improper amount or wrong sand size.
4. Inadequate turnover rate.
1. Insufficient backwashing
2. Sand bed plugged with mineral deposits..
3. Partially closed valve or restriction.
1. Improper backwash.
2. Pool chemistry not adequate to inhibit algae growth.
3. Plugged sand bed.
4. Flow rate too high.
1. Obstruction in the pump hair and lint pot.
2. Obstruction in pump.
3. Obstruction in suction line to pump.
1. Broken underdrain lateral.
2. Backwash rate too high.
3. Too much sand in the filter.
Remedy
Maintain pool chemistry or consult pool service technician.
Allow pressure to build to 10 psi above clean filter condition before
backwashing.
Check sand bed depth and sand size or consult pool service technician.
Run system for longer time or consult dealer or pool service technician.
Backwash until effluent runs clear.
Chemically clean filter.
Open valve or remove obstruction in return line.
Backwash until effluent runs clear.
Maintain pool chemistry or consult pool service technician.
Manually remove top 1" surface of sand bed and chemically clean as
required.
Restrict flow to capacity of filter.
Clean basket in strainer.
Disassemble and clean pump.
Clean skimmer basket. Remove obstruction in lines. Open valves in suction
line.
Replace broken or damaged laterals.
Reduce backwash flow rate.
See Table 1, reduce sand level.
8 Re v. C 5-1 1-0 1