With the JBL Aqua In-Out you must no longer work with buckets, because the water pump automatically siphons off water. A powerful water jet pump siphons water out of the aquarium even when the aquarium is located lower than the water outlet. After water has been drained, the pump is set to "Refill aquarium".
- john m. wrote about JBL Aqua In-Out in 2017:
life saver for tanks 100cm and above. Wish sucking strenght was a bit stronger but its still invaluable accessory
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