1. Permanent pH monitoring required, at least once weekly

1. Monthly pH monitoring advisable.

2. Permanent chlorine monitoring required, at least once weekly

2. Measurement of copper levels every 3 months using inexpensive kit.

3. Causes reddened, irritated eyes

3. No eye irritation.

4. Causes dry, flaking skin.

4. Silky soft skin.

5. Storage of the product and frequent replenishment.

5. Electrodes have a life of 4 - 5 years

6. Marked odour, particularly in public baths

6. Water with neutral odour

7. Corrosive risk to users and to clothing, particularly if fluid chlorine is used.

7. Fully automatic, risk-free release of  biocompatible ions.

8. Use of additional agents required to regulate pH.

 8. Occasional agents required for pH regulation

9. Bath requires supervision over longer periods of absence

9. No supervision necessary during absence of four weeks.

10.Use of additional flocculators necessary.

10.Automatic flocculation.

11.Use of agents necessary during winter breaks.

11.No algae formed during winter periods

12.Use of algaecides necessary.

12.No additional algaecidal agents required.

13.Showering advisable after bathing

13. Bathing in drinking quality water. Cleaner than most tap water.

14.Can cause irritation of respiratory tract and asthma in children.

14. Water contains no irritants.  Can be safely swallowed or inhaled.

15.Risk of corrosive effects on pool elements and environment.

15. No corrosive characteristics.

16.Hard water

16. Detectably softer water thanks to electrolysis and mild alkalizing effect.

17.Low buffer capacity.

17.Constant release of ions from electrodes.

18.Chlorine is a potential health risk.

18.Copper is a healthy essential element.

19. Expensive to maintain.

19.Maintenance cost only 50% of chlorine systems.

20. Requires extensive maintenance.

20.Minimal maintenance.

21.Chlorinated water should be changed once annually

21.No water change necessary.

22.Replacement of filter sand every 2 – 3 years

22.Replacement of filter sand every 10 years.

23.Expensive when basalt and hydroanthracite are used.

23.Standard quartz sand can be used for filters.

24.Rapid loss of efficacy if exposed to heating or strong sunlight.

24.Environmental influences have no effect.

25.Backwash water must be discarded.

25. Backwash water can be used to water plants and enhances their growth. Safe for pets to drink.