Something, good to hear. Pretty much exactly as expected -- swelling is for three days.
Regarding some of the other recent posts. Scotty (mentioned above) was mostly a victim of impatience -- he injected way more than anyone prudently would do, and it was acid which obviously did exactly what acid would be expected to do (painfully eat away from the inside, ulcerate the scrotum and enter the pelvis, etc.) So for those trying calcium chloride (or also alcohol) please don't go crazy and overdo it. There is nothing lost with doing a lesser dose in terms of amount or concentration. In particular with the calcium chloride the results apparently scale almost perfectly with amount, so in fact you might actually achieve the best result with a lesser amount -- like a half castration that knocks down testosterone levels but not entirely eliminating them to retain some health benefit (many people who get surgically castrated end up taking some testosterone again).
Regarding the sterility and purity concerns I think all of you are overthinking it. Of course you should be careful, but here are my thoughts. First of all, salt itself is quite antiseptic -- this is obvious because salted meat and vegetables are preserved (pickles, beef jerky, etc.) which means that the bacterial growth is knocked back significantly. Secondly, bacteria needs some sort of food to grow on and a mixture of salt and distilled water simply won't have any. It is not like apple juice (the comparison someone made above) because apple juice is pure food for bacteria. High concentration salt water is simply already a bad environment for bacteria to grow in.
Furthermore, you guys are making too much of the different grades of it. Food grade implies that it doesn't have harmful bacteria. Now it is true that bacteria that is not harmful to eat can be harmful to inject, but usually food grade things are fully pasturized or otherwise sterilized simply because bacteria is bad in food for both spoilage and danger. They're not going to let random bacteria grow in something sold for cheesemaking.
Third, in terms of purity, if you choose to mix your own, then any calcium chloride bought for science / chemistry purposes is going to be very pure (that's the point of chemistry supplies, otherwise it can wreck experiments or even create dangerous unwanted reactions) So chemistry grade calcium chloride mixed with distilled water is going to be quite pure. The danger would be if you used calcium chloride that is sold for melting ice on sidewalks as obviously there would be no need to make that pure or sterile.
Furthermore, you can sterilize it yourself by boiling it. Just read up on the temperatures required to ensure sterilization. Alternatively you can mix it with high proof ethanol. As mentioned by others, some of the calcium chloride injection studies included trying it mixed with ethanol and this was successful.
Regarding sterilizing by boiling, here is a reference:
http://www.enotes.com/sterilization-ref ... rilization
Another form of heat sterilization is boiling. Drinking water can be sterilized with respect to potentially harmful microorganisms such as Escherichia coli by heating the water to a temperature of 212°F (100°C) for five minutes. However, the dormant cyst form of the protozoan Giardia lamblia that can be present in drinking water, can survive this period of boiling. To ensure complete sterility, the 212°F (100°C) temperature must be maintained for 30 minutes.
It is up to you to judge, but personally I think that if you took food grade calcium chloried (or chemistry grade mixed with distilled water) then boiled it for 30 minutes, then mixed it half and half with alcohol you should be pretty confident that it will be sterile.
In any case, as others have said, we have Something now bravely embarked on the experiment so lets all have patience and see how it turns out. I know many people are desperately obsessed with castration, but waiting six weeks isn't too much to ask and we should have a definitive answer.