There are countless searches for "How to Clean Pool Tile Without Draning Your Pool". The truth is that, while tile cleaning is an important part of owning a pool, many pool owners want to get the project done with the least amount of effort or cost possible. Calcium deposits build up over time. This makes your swimming pool appear a bit dull and dingy. This can lead to scum build up and even damaged pool tile if left untreated. While you may be looking for the simplest way to DIY, if done improperly - it can damage your pool and your investment. Resulting in more cost in the long run. It’s best to have a professional come in and do the job. Glass tile can be really hard to clean because it can scratch easily.