Avast Marine Works Auto Top Off (Without Backup Float)

The media could not be loaded.  Best Auto top off out of all I have tried. I went through many name brand top off systems. Float valves get slimy, covered with alkaline, snails get stuck in them, etc., or the control just stops working. I was fed up, so I asked several reef buddies what they used that was reliable and they recommended Avast. I bought this Feb 2019 to use on my sps tank. It has worked flawlessly ever since. Not one issue. I did change the tubing a few months ago.I'm setting up a new nano tank and I'm buying another. I dont really use the float. I have one if I need it. I like the diaphragm pump better than a magnetic/impeller pump. Well worth the cost as it won't get gunk stuck in it and quit working.Ive got 5 tanks (soon 6) for my sps coral/high end anemone/high end euphyllia and soft coral

I've been shopping for a good quality ATO that won't break my wallet and will last a long time. I looked at the top brands and tested most of them. By far this is the only one that really gave me all that I needed. Reliability and longevity. When you purchase the system. Make sure to include the backup float. The magnet is pretty strong. I have a 1/4 inch thick acrylic on my sump and its really hard to peel the magnet and move the unit. You really have to take the magnet off to be able to move it in place. I will buy again. Great product made in the USA.

I have two. One to turn on the auto fill when too low and another to turn off the skimmer if too high. Reliable over several years but have replaced the rubber tubing a few times. You need to keep spare tubing handy. Especially have to watch if dosing calcium as the dosing tip will plug over time and then pop the tubing.

I like the product. I just installed it and it works as described. It is a great design. I have it hooked up to a pump for auto top off. I only wish the magnet was stronger but that may never turn in to an issue. I would buy any Avast product if I had the need as they are a good maker of reef keeping related items.David

Have been using this top off for over 3 years. I use a aqualifter pump, those seem to need replaced every other year. It's very reliable and I now have it set up to my apex. Easy to use and then not worry except cleaning everything once or twice a year like normal. Really appreciate that it's a USA product. Awesome products always from Avast.

fantastic product that is simple and effective. no need to deal with any other solution as the pressure switch is a least likely to fail or become an issue in the sump down the road like float switches. magnet is nice and strong and will work in all thicknesses even up to 1/2" in my experience. well supported and great guys at avast - buy with confidence!

Really blood product