How do I install a garbage disposal?

My garbage disposal is broken I purchased a new one form Lowe's but I don't know how to install it.

I may be best to pay some one but I don't have much money

Answers:
Replacement is easy if you're handy, and not bad even if you're not. I've put the link below to an instructional video from "Ask This Old House."

If your replacement is the same brand and model as the one you're taking out, it's even simpler since you'll be able to reuse all your parts and not even have to replace the collar.

Other answers:
1.
First, disconnect and remove the existing waste assembly, from the sink flange to the trap. Have towels and a bucket handy to catch water and debris. Once the waste lines are out of the way, remove the mounting assembly from the disposal and install the new flange in the sinkhole, applying a coil of plumber’s putty around it before dropping it into place, as shown.
2.
Attach the upper mounting assembly to the sink flange, placing a heavy object such as a large phone book on top of the flange to hold it in place. Follow the manufacturer’s directions for gasket placement and slip the mounting ring over the flange. Then, slide the snap ring onto the flange until it pops into the groove on the flange. Next, tighten the three mounting screws, as shown, until the assembly has a tight seal against the sink.
3.
To get ready to attach the disposal to the mounting assembly, first attach the discharge tube, as shown. Then, inspect the P-trap and clean out any hardened waste. Next, prepare the dishwasher drain connection. This usually entails knocking out a drain plug from the dishwasher nipple and attaching the drain hose from the dishwasher.
4.
Position the disposal under the mounting assembly so that the mounting tabs can slide over the mounting tracks. Lift the disposal and insert the top into the mounting assembly. Rotate the lower mounting ring until all three mounting tabs lock over ridges in the mounting ring. Use the wrench provided or a screwdriver to tighten the ring.
5.
Rotate the disposal so that the discharge tube aligns with the drain trap. If your sink is a double-bowl model, you’ll need to replumb the wasteline to attach to the disposal. If you’re lucky, all you’ll need is an extension tube. If not, you may need to replace the entire assembly, shown here.
6.
Finally, connect the disposal to power. Either run a line or have a licensed electrician run power into the sink cabinet and install a GFCI receptacle. If your disposal didn’t come with a plug on the end of the cord, wire the recommended grounded electrical cord to the disposal. Plug into the receptacle.
1.
First, disconnect and remove the existing waste assembly, from the sink flange to the trap. Have towels and a bucket handy to catch water and debris. Once the waste lines are out of the way, remove the mounting assembly from the disposal and install the new flange in the sinkhole, applying a coil of plumber’s putty around it before dropping it into place, as shown.
2.
Attach the upper mounting assembly to the sink flange, placing a heavy object such as a large phone book on top of the flange to hold it in place. Follow the manufacturer’s directions for gasket placement and slip the mounting ring over the flange. Then, slide the snap ring onto the flange until it pops into the groove on the flange. Next, tighten the three mounting screws, as shown, until the assembly has a tight seal against the sink.
3.
To get ready to attach the disposal to the mounting assembly, first attach the discharge tube, as shown. Then, inspect the P-trap and clean out any hardened waste. Next, prepare the dishwasher drain connection. This usually entails knocking out a drain plug from the dishwasher nipple and attaching the drain hose from the dishwasher.
4.
Position the disposal under the mounting assembly so that the mounting tabs can slide over the mounting tracks. Lift the disposal and insert the top into the mounting assembly. Rotate the lower mounting ring until all three mounting tabs lock over ridges in the mounting ring. Use the wrench provided or a screwdriver to tighten the ring.
5.
Rotate the disposal so that the discharge tube aligns with the drain trap. If your sink is a double-bowl model, you’ll need to replumb the wasteline to attach to the disposal. If you’re lucky, all you’ll need is an extension tube. If not, you may need to replace the entire assembly, shown here.
6.
Finally, connect the disposal to power. Either run a line or have a licensed electrician run power into the sink cabinet and install a GFCI receptacle. If your disposal didn’t come with a plug on the end of the cord, wire the recommended grounded electrical cord to the disposal. Plug into the receptacle.
First, disconnect and remove the existing waste assembly, from the sink flange to the trap. Have towels and a bucket handy to catch water and debris. Once the waste lines are out of the way, remove the mounting assembly from the disposal and install the new flange in the sinkhole, applying a coil of plumber’s putty around it before dropping it into place, as shownthat the only one i know
It's not that hard. The tools are what you need. You'll need a pair of channel locks which are pliers that can open to various positions. You'll also want to find the breaker switch to shut off power to the disposal. Screwdrivers (a flat head and a philips head)Some plumbers putty (found at the local hardware store) Pay attention to how you take it apart and when you reinstall the new one just use the reverse procedure. Patience and reasoning are a must. Otherwise ask your dad or a guy friend to do it
The good news is that you already have most of the project done since you are replacing an existing disposal rather than installing everything from scratch. The link below should get you on the right track. The link starts as if there is no disposal. Scroll down to Garbage Disposal Installation: Mounting the Disposal System. Just a suggestion but read the whole install process before you start. It's pretty easy really. Just go slowly and carefully. The mounting flange can, and should be, fairly tight. I'm betting Lowe's has a pamphlet floating around on how to do this. Directions in the box? Anyway, good luck...easy project.

http://www.diynetwork.com/diy/shows_detp/episode/0,2046,DIY_19138_34687,00.html
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