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I am impressed with the engineering, and care that was put into this design. I own a construction company and I can think of several possibilities for the application of this product. I did try the cup out, and would feel very comfortable lifting heavy doors and windows. The built in gauge gives you confidence when handling delicate materials, and products.
Pros:
1. Battery life very long
2. Easy to use
3. Works on any flat surface so it has so many other uses
4. Made by GRABO
5. Automatically reseals
Cons:
Surface has to be smooth, the professional Grabos I think allows a lot more give. Where if there are any ridge lines, it will not sanction. Though this is expected.
Overall:
Most people know the brand GRABO, so it was not sure why this device was also called OTTOVAC. Regradless it works great! I used this specifically to install 12x24 tiles and it would have been a PIT if I did not have this. Besides easily holding the tile and placing it on the thin set, it also allows you to "wiggle" the tile around to make sure you have full contact and coverage.
ideal for lifting sandstone slabs
Tony Dorne –
Picked up an additional Ottovac Li-Ion battery, and I’m so glad I did. The battery life is solid, and it charges pretty quickly. It’s really easy to change the batteries, so I can keep my projects moving smoothly. If you’re using your Ottovac for big or multiple projects, having an extra battery is definitely worth it.