dwightthinker: I don't like this type of iron because the tip is not grounded. Most part don't have problems but a part that is commonly use with arduinos is very sensitive and easily damaged with an ungrounded tip of a soldering iron. That part is a MOSFET. One of the other thread started about just such a problem. The tips of these iron has a small capacitance to about 1/2 the line voltage. Most parts have protection that can easily handle this small of a capacitance. The MOSFET's input is essentially a capacitor. A small capacitor. The voltage of the ungrounded iron can easily go over 70 volts, damaging the gate lead. Dwight
Can you recommend a good iron sold on a Canadian website?
Jiggy-Ninja: FYI, most things that cannot be washed will be mechanical things, like switches or relays that aren't sealed, or something like an atmospheric sensor with an open port. The thing these have in common is little nooks and crannies that the cleaning gunk can easily get into, but not so easily removed.
Most electronics components won't care about being washed, as long as they are dried before powering up.
Using the Hakko page that INTP linked, your best general purpose tip is going to be a shape D chisel tip, probably the 1.6D or 2.4D.
Also, do not forget solder wick and a solder sucker.
Do not forget to get solder wick. I said it twice because it's important.
Would https://www.amazon.ca/SODIAL-Aluminium-Desoldering-Solder-Remover/dp/B00JFOR9G0/ref=sr_1_1?s=hi&ie=UTF8&qid=1475415878&sr=1-1&keywords=solder+sucker and https://www.amazon.ca/MG-Chemicals-424-LF-Temperature-0-05-Inch/dp/B008O9WEUS/ref=sr_1_12?s=hi&ie=UTF8&qid=1475416071&sr=1-12&keywords=solder+wick work?