Beatbot AquaSense 2 Ultra: three days of algae cleaning in Madrid

My pool had only recently been completed. The weather in Madrid warmed up over these days, and because I had not turned on the sand pump, disinfection or filtration, green algae multiplied within a week. I searched online to find which product was best and ended up choosing the most expensive one. The website price was €2,925, which was genuinely much higher than in the United States. In my test, using the robot directly to remove green algae was completely ineffective, so I searched online for a solution. I bought pool-disinfection tablets and added six of them; four hours later, the sand pump and salt-chlorination disinfection were both running for more than 10 hours. By the next day, almost all the green algae had died. Some had settled on the pool floor and some was floating on the surface. On my first use of this Beatbot AquaSense 2 Ultra, I selected Pro mode. After five hours, when the battery ran out and the robot came to the pool edge, I opened the filter basket and found the inner walls of the two-layer filter completely covered with green algae, while the basket contained no sand or other floor debris. I then tried other modes to clean the pool. After testing it for three days, my conclusion was that it did not do a very good job cleaning green algae or sand on the pool floor, including dust and sand that had settled from the air. Floating algae still had to be collected manually with a traditional pool net; in five minutes, I collected far more by hand than the robot collected in five hours. Because the dead algae was very fine, the robot drew it into the filter with water flow, and once the filter surface became covered, it could no longer continue collecting and filtering the algae. With green algae, regardless of the mode, I found over three consecutive days that the five-hour battery run ended with only a little algae on the filter surface. There was only a small amount of mud and sand in the basket. My pool does not have many fallen leaves, so I was basically relying on the robot to clean green algae and mud. Unfortunately, it performed poorly at both, and because this model costs far more than other robots, I have decided to apply for a refund and return it. I will think about which robot to buy next. One more complaint: this Chinese-made high-tech product surprisingly had no Chinese-language manual. Even if it is aimed at the high-end European and American export markets, surely Chinese people also buy products in those markets? Regardless of where a Chinese-manufactured product is sold, a user manual without even basic Chinese makes me feel that management still looks down on Chinese people.