Works well but takes a long time to get the right amount of water into the hose. The instructions are on the packaging, not a separate piece of paper, and they should state that you must use a rigid type of hose, otherwise the water level will fluctuate wildly due to the expansion and contraction of the hose. For example, a pressurized hose is slightly larger than if it were not pressurized. This leads to fluctuations in the water level. The product would be better if it was redesigned to make it easier to add water without having to connect it to a faucet.
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