Fibreglass		Marblesheen
Vinyl		Concrete
Plastics		Pebbletex
Painted surfaces		Grouting in tiles
These surfaces need a total alkalinity of 120-150ppm and a pH level of 6.8		These surfaces need a total alkalinity of 80-120ppm and a pH level of 7.2

It's the surface that is in contact with the water that counts. If you have a painted pool, it doesn't matter what surface is under the paint - be it concrete or plastic, it's the painted surface that comes into contact with the water and so decides what pH is ideal for the pool.

The Pool Crystals And Directions for Use booklet will tell you how to adjust total alkalinity and the pH to the appropriate level before using Pool Crystals, download it HERE now!

An important word on the chlorine level
Also, before using Pool Crystals, test and establish the chlorine level to at least 1.5 ppm (or 2.0 ppm if the water is above 26°C).

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A "Pool Care With Pool Crystals And Directions For Use" booklet accompanies all orders of Pool Crystals. The booklet contains important information such as:

• pH
• Maintenance
• Total Alkalinity
• Understanding Chlorine
• Adjusting total alkalinity and pH levels

Want to view our Booklet now?
Download it HERE (PDF format - 1.4mb)

If you don't have Adobe Reader, you can download a FREE version HERE

An important word on total alkalinity, pH and chlorine
Establishing the correct total alkalinity, pH and chlorine levels of your pool water before using Pool Crystals is very important for Pool Crystals to work effectively.

Different pool surfaces need different total alkalinity and pH levels. What suits a pebbletex pool surface is not necessarily right for a fibreglass pool. The pH balance must be right for your pool.

A pH level of 7.0 is neutral. When using Pool Crystals, some pool surfaces require a more alkaline environment - a higher pH; and some prefer a more acidic level of water - a lower pH.