I am nearing time to replace my second Blue Diamond pool robot. This has the foam rollers vs the paddle type. Prior to finding my second one, I tried a Dolphin S300, and had a terrible time getting my sides clean. I have a mountain pond-shaped pool with a vinyl liner, with curved soft-pack sides. With the S300, it seemed to skip around, leaving marks like dots and dashes. Now that the Blue Diamond (WaterTech) is long gone, I need something for my pool. Any tips? Seems the entire dolphin line has same tank tracks and paddle rollers. Thanks!
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