| Filter/Media Types
| | Sand Filters Strengths - Few moving parts to replace
- Simple to operate
- Inexpensive to manufacture
| Weaknesses - Sand media wears out gaskets
- Expensive & inconvenient cleaning cycle
- Backwash discharge water
- Will not remove fine particles or algae
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| | Diatomaceous Earth Filters Strengths - Removes fine particles, even algae clusters, to 5 microns
| Weakness - Many Parts, must be assembled
- Complex cleaning procedure
- The dirty diatomaceous earth is not environmentally friendly
- High maintenance
- Diatomaceous earth is harmful to breath
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| | Permenant Element Filters Strengths - Simple to operate
- Few moving parts
- Removes fine particles, even algae clusters as small as 7 microns
- Low maintenance
| Weakness - Expensive to manufacture
- Must be careful not to undersize
| Cleaning Your Filter |
| | Sand Filters Materials Supplies - 100 to 600 gallons of water
- 50' to 80' of backwash hose
- Ecological safe drain area
- Permits required in some cities
- Garden hose to refill
| General Procedures - Locate suitable dump area
- Roll out backwash hose
- Turn valve to backwash
- Observe backwash flow (100 to 600 Gallons) until water begins to clear
- Stop filter, turn valve on filter to waste, start and run for 1 to 2 minutes
- Allow filter to settle for 10 to 15 minutes
- Roll up backwash hose
- Periodic use of a filter cleaning chemical will be required
- Fill pool back up with water after depletion during backwash
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| | Diatomaceous Earth Filters Materials & Supplies - Lined plastic garbage can
- Rubber gloves & scrub pail
- Stiff acid proof brush
- 10% muriatic acid for periodic dip cleaning
- 5 gallon pail for periodic dip
| General Procedures - Unbolt and remove dirty grid or finger cluster from the filter tank
- Suspend dirty grid or finger cluster over garbage can and wash off dirt and expended D.E.
- Use brush to remove earth clogged between grid or fingers
- Pour off a smuch water as possible and seal bag of contaminated earth
- Dispose of bagged earth in an ecologically sound manner
- Re-Assemble grid or finger cluster in tank
- Acid dip and brush as required
- End of season give acid bath
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| | Permenant Element Filters Materials & Supplies - Garden hose and 20 gallons of water
| General Procedures - Hand spin quick lock tank ring and remove cartridge element
- Rinse off cartridge element
- Replacve element and spin on quick lock tank ring
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