Any pool deck can gather stains, oil spills from the grill, and slippery algae over time. However, maintenance depends on what kind of pool decking material is utilized.
If you have a concrete deck, it is effortless to maintain. You can keep it clean by pressure washing it regularly and using a sealant. If you see any peeling or cracks, repairing them immediately will go a long way in preventing significant issues.
If you have a wooden deck, you should sweep off the dirt and leaves collected on the deck frequently. In winter, you must shovel off the snow promptly. You will need a professional to clean and seal the deck every 2-3 years.