I am looking for about 3 cans of r12. Can anyone in or around San Antonio still buy this stuff? If not, does anyone have a can tapper for r12, that I can borrow? I hate to convert to r134a, but will if I can do it on my own. I was told the r12 would need to be sucked out at a shop. Any truth to this? What if i just let it all leak out? I thought this stuff was heavier than air, so I cannot understand how it could harm the ozone. I can buy feeeze 12 on ebay for pretty cheap, but I don't wanna buy a can tapper. So if someone has one that I can borrow, I will go that route. Thanks in advance for any info.