Maintaining Your Cairns
Natural Pool
Natural pools require far less maintenance than chlorinated pools. Here's what to expect through Cairns's seasons.
A natural pool in subtropical Queensland operates differently from those in cooler climates — the biological system rarely fully rests, running at reduced but continuous activity year-round. Total maintenance time is approximately 2–3 hours per month, with the heaviest demands in summer (surface skimming after tropical storms) and the lightest in winter (the system keeps itself healthy).
Wet season management (November–April) is the most critical maintenance period. Storm debris, high organic input from surrounding vegetation, and the occasional heavy downpour all require attention. A quality leaf skimmer and regular surface clearing after storms prevents organic overload of the regeneration zone. Monitor water levels after heavy rain — overflow paths should function correctly.
Dry season (May–October) is minimal maintenance. The biological system performs at its best in QLD's warm, dry conditions. Top up water levels as evaporation exceeds rainfall. Remove any surface algae films promptly — QLD's high UV and warmth can allow surface biofilms to establish if the surface isn't skimmed regularly. Reduce pump run-time slightly in winter (5–8 hours/day is sufficient).