No, I don't. With robotics, you normally turn off the wall-climbing function if you use it with a cover on it. 95% of spring cleanup is off the bottom anyway--once the winter cover is off you can do a full wall clean.
Plus, most robotics shouldn't be put in cold water, some limit the minimum temperature to about 70 degrees! If the water is 45-50 degrees, you probably shouldn't be using the cleaner.
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