Comments:
The auto top-off works as expected, silently. I fill a container with enough filtered water to top-off for a week (1.5 gallon for my 37G tank). I also add 1-week amount of trace elements to the top-off water.
Observations:
- The product has solid construction (German, if I'm not wrong).
- It comes with abundant tubing and it is very easy to setup;
- It comes with a spare membrane;
- You will need to have the pump screwed into the wall of your stand;
- It saves me the daily work of top-off and dosing of trace elements;
- I would buy it again;
- It is perfectly designed for sumps.
Warnings for aquarium installations:
- The water-level sensor, when used inside the tank, forced the water level to be visible below the border of the tank (I'm using a All-Glass tank). Not a big deal, but to elevate the sensor I had to glue (silicon) it on top of the support, instead of just connecting the sensor to the support as designed by the manufacturer.
- If the water-level sensor is used inside the tank and a snail touches it, it may unnecessarily trigger the pump and provoke an overflow.
Yes, I would recommend this product to my friends.
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