Sand Filter Maintenance

Problem
Cause
Remedy

Pool water not sufficiently clean.
Pool chemistry not adequate to inhibit algae growth.
Maintain pool chemistry or consult pool service technician.

High Filter Pressure 
Insufficient Back washing

Sand bed plugged with mineral deposits.

Partially closed valve.
Back wash until effluent runs clear.

Chemically clean filter.

Open valve or remove obstruction in return line.

Short Cycles
Improper back wash

Pool chemistry not adequate to inhibit algae growth.

Plugged sand bed

Maintain pool chemistry or consult pool service technician.

Manually remove top 1″ surface of sand bed. Replace with new sand and chemically clean entire sand bed.

Restrict flow to capacity of filter.


Sand returning to pool
Broken underdrain lateral
Replace broken or damaged laterals

Sand loss to waste
Back wash rate too high

Improper sand size

Air strainer is damaged or missing
Reduce back wash flow rate.

Change to proper sand.

Replace air strainer.

Leak at closure
Improperly tightened closure

Dirt or contamination

Damaged parts
Shut off pump, relieve tank pressure, open air bleeder, tighten closure properly.

Shut off pump, relieve tank pressure, open air bleeder, remove closure & clean all sealing surfaces. Reassemble closure carefully.

Same as above except replace damaged O-Ring, closure, tank, or any combination of parts as required.

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Store locations & Hours

Pool Tech Plus, Inc.
2331 E. Lohman Ave.
Las Cruces, NM 88001
Voice: (575) 524-4633
Fax: (575) 647-3373
E-Mail: sales@pooltechplus.com

Summer Hours:
Monday - Friday: 8:00 am. - 6:00 pm.

Saturday: 9:30 am. - 5:00 pm.
Sunday: 11:00 am. - 4:00 pm.

***CLOSING EARLY, 2:00 pm Fathers day Sunday June 18th.***