This unit is an online only purchase.
Yes but the pressure requirement would take you all day. I sand blasted area of my barbecue pit down to bare metal, a 4 sq foot section took 3 hours. For house, I would probably rent or buy a high pressure pressure washer.
No, this unit is designed for smaller projects like a wheel or bike frame.
The sandblaster can be used in assisting in the removal of calcium off of the block. Please refer to the different types of sandblasting media and what the manufacturer's recommendation is for your specific use.
I wouldn't bet on it. My hopper works fine on rust, slower than I hoped. The hopper has to continuously be agitated because of the exit port in on the side and not the bottom. The cost is low enough to try it but you still need an air source and a vacuum for clean up. If it lime or calcium deposits I would probably do a chemical treatment like CLR.
To power the hopper you will need an air compressor.
It's more about the blasting media but this unit is for smaller jobs and not a very good one at that
Yes, but read my review
Depending on the level of detail you are looking to do this could work. Media plays a HUGE role in this as different media's have different strengths. Another BIG factor is to make sure you have the proper air flow and that you do not have the hose covering the breathing hole as it will not allow the sandblaster to work correctly and the size of your air compressor. Please Note: When blasting cinder blocks you are wearing the corrective gear and have proper ventilation.