If the garbage disposal won't turn on but the motor makes a humming sound when you flip the switch, it indicates that the inner flywheel is jammed. Usually, this causes the appliance's reset button to pop or the circuit breaker to trip very quickly. This is not a situation you want to continue for very long, as it can burn out the disposer's motor unless the reset button or circuit breaker shuts things off. 
After you install the new sink flange, you don’t want it shifting around when you’re assembling the parts underneath. Movement of the flange could break the seal between the flange and the sink, inviting a leak. Your best bet is to ask a helper to press down on the sink flange, or if you’re working alone, find something to weigh it down, such as the old disposal. Place an old towel under the weight so you don’t scratch the sink. If the bottom of your sink is quite concave, the old disposal might not contact the flange. In that case, place a can on the flange, then weigh down the can.
I was disappointed with the pressure of a tub and shower that were plumbed with 1/2 supply lines (2nd floor). Could be low pressure from the street, but I want to replace with 5/8. Plus, I'd like to have 2 back to back showers, one inside and one outside. So, I had intended to bring a 1 supply to both, then branch up to valves and shower head with 5/8. Finally, I thought pressure from the street was typically 55 to 70 psi and I am concerned if pvc can take that.Any thoughts?
Trim the discharge tube as needed. If you’ve upgraded to a larger disposal or one of a different model, there’s a good chance that the discharge tube won’t be the right length to connect to the ground plumbing valve. Fortunately, this is a simple fix—mark the spot on the tube where it should line up with the drain pipe, then cut it to size with a hacksaw. It should be a perfect fit.[19]
Garbage disposers address the often disparate demands of convenience and conservation by grinding up kitchen scraps, especially non-compostable leftovers like meat and poultry or fat, and sending them down the drain to a sewage-treatment plant or septic system for handling, rather than to the landfill for slow decomposition. Our tests show that some disposers grind more quickly and finely, and are better at resisting jams.
The Camorra was never a coherent whole nor a centralised organization. Instead, it has always been a loose confederation of different, independent groups or families. Each group was bound around kinship ties and controlled economic activities which took place in its particular territory. Each family clan took care of its own business, protected its territory, and sometimes tried to expand at another group’s expense. Although not centralized, there was some minimal coordination, to avoid mutual interference. The families competed to maintain a system of checks and balances between equal powers.[26]

Garbage Disposal Replace