Wow! How much does it cost you to have something the size of a 275-gallon fuel oil smoker sand blasted?Big T wrote:I normally have mine sand blasted before I paint them but at the very least I clean them with a wire wheel on a grinder.
Muriatic acid specifically? No, I haven't, I do have, however, 17 years as a heating, air conditioning, and ventilation (HVAC) service technician and am very familiar with acidic coil cleaners. When you spray this stuff on a dirty air conditioner's condenser coil it foams up and smokes. Air conditioning coils are made out of aluminum and copper and far more delicate than steel. In fact, they're so delicate that a condensing unit (the outdoor unit) if left where a male dog can continually urinate on it will over time eat the aluminum fins from the condenser coil because the urine is acidic. With immediate water washings to neutralize the acid very little damage is done using fairly strong acid to clean them. http://www.ebay.com/itm/Nu-Calgon-4133- ... Sw-CpX~sRNDirtytires wrote:Ever spray muratic acid?
Not something I want to play with.
Besides, the acid will chemically etch the metal leaving all sorts of extra crevices for rust to start in. I hate rust.