POSSIBLE CAUSE

REASON

SOLUTION

PRODUCT REQUIRED

Cloudy Water

Build up of dirt & bather pollution

Ineffective chlorine levels or poor filtration

Backwash filter, then shock treat. Add clarifier to polish water.

All Swim Shock, Crystal Clear

Start of Algae growth

Insufficient levels of chlorine

Shock treat. After 24 hours backwash filter. Maintain chlorine level above 1.5ppm. Prevent reoccurrence of algae growth

All Swim Shock. All Swim Cyanachlor Algicide or Kleenpool

Chlorine ineffective

Over stabilisation

Dilute pool water and shock treat

All Swim Shock

Ineffective filtration

Filter blocked or filter media needs renewing

Check filter media or cartridge

See ineffective filtration for more detail

Suspended particles

Precipitation of salts due to high pH or high alkalinity

Correct pH and/or alkalinity

All Swim Pool Acid. Crystal Clear

Unpleasant Water

High combined chlorine's

Free chlorine levels too low

Dilute pool water and shock treat

All Swim Shock

Eye Irritation

Detergents from cleaning compounds getting into pool water

Reaction between chlorine and detergent

Use chlorine compatible cleaners

All Swim Tile & Liner Cleaner

Sore eyes / throat

Water too acid / alkaline

pH too low / pH too high

Correct pH / Correct pH

All Swim Pak 2 / All Swim Pool Acid

Chlorine level difficult to maintain

Sunlight destroying chlorine

Chlorine not stabilised

Use stabiliser or stabilised chlorine

All Swim Conditioner. All Swim Cyanachlor

Build up of pollutants

Insufficient chlorine

Shock treat

All Swim Shock

High water temperature

Organisms multiply more quickly

Increase dose of sanitizer

All Swim Cyanachlor or HTH

No chlorine reading despite adding chlorine

Chlorine level may be too high

High chlorine level bleaches reagent in test tablet

Allow chlorine to reduce naturally over a period of time

Contact All Swim

pH too low

low pH of local water supply

Insufficient alkali

Add alkali - ideal pH 7.2 - 7.6

All Swim Pak 2

Use of acidic chlorine donors

Insufficient alkali

Add alkali - ideal pH 7.2 - 7.6

All Swim Pak 2

pH too high

High pH of local water supply

Insufficient dry acid

Add dry acid - ideal pH 7.2 - 7.6

All Swim Pool Acid

Use of alkaline chlorine donors

High alkalinity

Reduce alkalinity to 125ppm check pH

All Swim Pool Acid

Salts being leached from new concrete pools

Self correcting over a period of time

Add dry acid - ideal pH 7.2 - 7.6

All Swim Pool Acid

pH erratic

Insufficient bicarbonate to buffer pH

Low total alkalinity

Add bicarbonate - ideal 125ppm

All Swim Pak 1

pH locked

Too high a level of bicarbonate

Topping up from mains water can increase alkalinity in hard water areas

Reduce alkalinity to 125ppm check pH

All Swim Pool Acid

Low alkalinity

Bicarbonates reduced by dilution, particularly in soft water areas

Mains water has low levels of bicarbonates

Add bicarbonate minimum 75ppm, consult All Swim

All Swim Pak 1

Pool walls feel slimy

Algae growing

Insufficient chlorine

Shock treat to kill algae, sweep and vacuum pool. Prevent recurrence with algaecide, brush pool walls

Algaecide or Kleen Pool

Dirt on pool wall at water level

Build up of fat, oil & cosmetics

Irregular cleaning of surfaces

Clean with sponge & suitable detergent

All Swim Tile & Liner cleaner

Sharp edges around tiles

Grout being leached by water

Water too soft

Re-grout pool. Increase calcium levels to minimum 175ppm. Consider changing to HTH

HTH

Ineffective Filtration

Incorrect sand level in filter

Not enough sand to filter out particles

Renew and/or top up sand

.

Correct level of sand

Blocked filter / filter sand

Backwash & use filter aid

Filter Clear

Cartridge filter in poor condition

Filter allowing particles through

Renew Cartridge

Crystal Clear