How can I dissolve Ca and Mg ions in water?
from what? The pure elements? You can pour conc. HCl on dolomite [CaMg(CO3)2] (beware: CO2-evolution) and you get Mg2+ (aq) and Ca2+ (aq). Some windowsills are made of marble ;-)
yes your right a bot the pin take it out, take off the whipper and replace it, if you are only changing the rubber their should be a staple type of thing on one side, Just slide it off and slide the new one on it not to hard.
Go to autozone or Advance auto website there are tutoreials there that will help you. How to remove various other assemblies: Bayonet arm- Press release lever under connector, pull blade off. Side-Pin Arm- Depress release lever, slide blade off the pin. Locker arm- Pull out side lock, lift off blade assembly. Push blade toward base of arm and lift off. Shallow hook- Pull out side lock, rotate blade and remove. Press blade against arm, rotate and remove. Shepherd's Crook- Squeeze spring arms together; slide blade off. Push lever down until arm unlocks; slide blade off.
