No, the gas patio heater does not only work with 5 kg propane. It can also work with other sizes of propane tanks, such as 10 kg or 20 kg. The heater is designed to be compatible with various sizes of propane tanks, providing flexibility for users to choose the size that best suits their needs. **

To lay patio slabs with more than 5 cm of gravel, you will need to first prepare the area by digging a trench and filling it with a layer of compacted gravel that is at least 5 cm deep. Then, you can lay a layer of sand on top of the gravel to create a smooth and level surface for the patio slabs. Once the sand is in place, you can then lay the patio slabs on top, making sure they are evenly spaced and level. Finally, fill the gaps between the slabs with more sand or gravel to secure them in place. **

As of my knowledge cutoff date in September 2021, there has been no episode of the One Piece anime that shows Luffy using Gear 5. Gear 4, also known as Boundman, is the highest level of Gear that Luffy has demonstrated in the anime. It's possible that future episodes or chapters of the One Piece manga may reveal a Gear 5, but as of now, it has not been shown in the anime. **

To combat algae or mold on patio furniture, you can start by regularly cleaning the furniture with a mixture of water and mild detergent. Scrub the affected areas with a brush to remove the algae or mold. Additionally, you can use a solution of water and white vinegar to kill and prevent the growth of algae or mold. It's also important to regularly clean and maintain the furniture to prevent the buildup of moisture, which can contribute to the growth of algae or mold. Finally, consider using a protective cover for the furniture when it's not in use to prevent moisture buildup. **

As of now, there has been no official announcement regarding the introduction of Gear 5 in the One Piece series. The creator of One Piece, Eiichiro Oda, has not revealed any specific details about when Gear 5 will be introduced. It is likely that Gear 5 will be revealed at a significant moment in the story, but fans will have to wait for Oda to unveil it in the manga or anime. **

To remove stains from light-colored patio slabs and tiles, you can start by using a mixture of water and mild dish soap to scrub the affected areas. For tougher stains, you can try using a solution of equal parts water and white vinegar or a commercial patio cleaner. Apply the solution to the stains and let it sit for a few minutes before scrubbing with a brush or sponge. Rinse the area thoroughly with water and repeat the process if necessary. Additionally, you can use a pressure washer for more stubborn stains, but be sure to use it on a low setting to avoid damaging the patio surface. **

Yes, you may remove patio tiles, but it's important to consider a few things before doing so. First, check with your landlord or local building codes to ensure that you are allowed to make alterations to the patio. Additionally, be prepared for the potential cost and effort involved in removing the tiles, as well as the possibility of needing to replace them with new tiles or another type of flooring. Finally, consider the impact that removing the tiles may have on the overall appearance and functionality of the patio. **

Patio sand does not dry easily because it is often compacted and lacks proper drainage. The compacted nature of patio sand prevents air and water from circulating freely, inhibiting the drying process. Additionally, if the sand is in a shaded area or receives little sunlight, it may take longer to dry. Finally, if the sand is constantly exposed to moisture from rain or irrigation, it will struggle to dry completely. **