Quick Answer. Craving sour foods can be one of the cravings that women experience when they are pregnant due to hormonal changes, says BabyCenter, or craving sour foods can simply be a craving that exists due to brain chemistry, says WebMD.
1 Residential garbage disposals with a 1/3 horsepower (HP) motor cost about $50-$115; a 1/2 HP model runs around $60-$180; disposals with a 3/4 HP motor are about $120-$350; and 1 HP motors can be $150-$380 depending on brand name and quality of construction. If you can't install the garbage disposal yourself, it's generally not a difficult or time-consuming process and you can usually hire a handyman, for anywhere from $30-$150 an hour.
If you have to replace your garbage disposal for whatever reason, the cost will be higher. The units usually run from $150 on up to several hundred dollars depending on factors such as the size of the motor and how much noise it makes.