The remedies for these common pool problems can be found here.
If you are experiencing any other symptoms please ​contact us.

​Cloudy Water

PROBABLE CAUSE	UNDERLYING REASON	TO RECTIFY
Build up of dirt and bather pollution	Insufficient chlorine or poor filtration	Backwash filter then super chlorinate to 10mg/l of free chlorine. ​Add clarifier to polish water
Air particles reflect light giving cloudy appearance in pool	Air being drawn into system	Check all joints on suction side of pump ​Check air release valves, water level should be checked
Start of algae growth	Insufficient levels of chlorine	Super-chlorinate and after 24 hours backwash filter Maintain chlorine level at 1.5 mg/l Prevent recurrence of algae growth
Chroline ineffective	Over stabilisation  (if using isocyanurates - dichlor or trichlor)	Dilute pool water and super-chlorinate
Ineffective filtration	Filter blocked or filter media needs renewing	Check sand filter cartridge, or DE Media
Suspended particles	Precipitation of salts due to high pH or high alkalinity	Correct pH and/or alkalinity

Unpleasant water

PROBABLE CAUSE	UN​DERLYING REASON	TO RECTIFY
High combined chlorine	High combined chlorine	Super-chlorinate
Detergents from cleaning compounds getting into pool water	​Reaction between chlorine and detergent	Use pool compatible/biodegradeable cleaners
​Water too acidic or alkaline	​Water too acidic or alkaline	Correct pH value

Chlorine Level difficuLT TO MAINTAIN

PROBABLE CAUSE	UNDERLYING REASON	TO RECTIFY
Sunlight destroys chlorine	Chlorine not stabilised	Add stabiliser to preserve chlorine levels
Insufficient chlorination	Build up of pollutant	Super-chlorinate
High water temperature	Organisms multiply more quickly/chlorine liberated from pool easily	Increase dose rate of sanitiser

​pH too high or too low

PROBABLE CAUSE	UNDERLYING REASON	TO RECTIFY
Not enough pH corrective being added	Mains water pH high	Add pH corrective as necessary
High pH of local mains water	Insufficient Dry acid being added, or applied incorrectly	Add acid per instructions. Maintain pH between 7.2 and 7.6. Reduce alkalinity to recommended level
Use of alkaline chlorine donors	High alkalinity	Adjust with relevant chemical
Salts being leeched from new concrete pools	Self correction over a period of time	Check pH

​Pool walls feel slimy

PROBABLE CAUSE	UNDERLYING REASON	TO RECTIFY
Algae growth on pool surfaces	Insufficient chlorination and/or pool water brushing/vac	Super-chlorinate to kill algae. Sweep or vacuum debris Prevent re-occurrence with algicide

pH levels erratic

PROBABLE CAUSE	UNDERLYING REASON	TO RECTIFY
Low total alkalinity	Insufficient bicarbonate to buffer pH	Add bicarbonate to raise alkalinity to 80-120 mg/l. ​Maintain pH at 7.2 - 7.6

​No chlorine reading on test kit

PROBABLE CAUSE	UNDERLYING REASON	TO RECTIFY
Chlorine level may be too high	High chlorine content bleaches reagent in test tablet	De-chlorinate Dilute or allow chlorine to reduce naturally over a period If very high  reduce with chemicals
No chlorine present	Automatic controller has "locked out" ​No chlorine in feeder	Re-set controller ​Re-fill feeder

​Dirt on pool walls at waterline

PROBABLE CAUSE	UNDERLYING REASON	TO RECTIFY
Build of body fat, sun oil or cosmetics	Irregular cleaning of surfaces	Clean with biodegradable chemical

​Scale on pool surfaces

PROBABLE CAUSE	UNDERLYING REASON	TO RECTIFY
Water out of "balance"	Ratio of calcium hardness to total alkalinity incorrect	Check levels of pH alkalinity and calcium

​SHARP EDGES AROUND TILES

PROBABLE CAUSE	UNDERLYING REASON	TO RECTIFY
Grout being leeched by unbalanced water	Mains water too soft	Regrout the pool. Increase calcium levels to min 250mg/l and maintain. Consider changing sanitiser to calcium-based product (hth) to add calcium and minimise loss of grout

​Ineffective filtration

PROBABLE CAUSE	UNDERLYING REASON	TO RECTIFY
Sand Filter:  Is the sand level correct?	No - Not enough sand to filter out particles ​Yes - Blocked filter or filtration needs assistance	Renew or top up sand ​Backwash filter and use filter acid

​pH locked in/difficult to adjust

PROBABLE CAUSE	UNDERLYING REASON	TO RECTIFY
Alkalinity too high	Bicarbonate levels in pool too high	Check pH and reduce alkalinity to recommended level
Value	Topping up from mains water can increase alkalinity in hard water areas	Check mains water alkanility level. Is it higher than 150mg/l?  If so, reduce
Click here to edit.	Carbon dioxide used and increased alkalinity beyond desired level	Aim for pH of 7.6 to minimise Carbon dioxide dosing level

Low alkalinity​

PROBABLE CAUSE	UNDERLYING REASON	TO RECTIFY
Bicarbonates reduced by dilution, particularly in soft water areas	Mains water has too low level of bicarbonates	Add bicarbonate until alkalinity at recommended level