
Everything You Need to Know Before Purchasing the Insinkerator Pro 750
The Insinkerator Pro 750 is one of the most powerful and efficient garbage disposals on the market. With a 3⁄4 horsepower motor and galvanized steel grind components, this disposal can grind even the toughest food waste with ease.
If you’re in the market for a new garbage disposal and want one that can handle large amounts of waste without clogging or jamming, the Insinkerator Pro 750 deserves strong consideration. This buying guide will provide a comprehensive overview of the Pro 750’s features, installation, maintenance, comparisons to other Insinkerator models, and much more.
Let’s dive in and go over everything you need to know before purchasing the Insinkerator Pro 750!
An Overview of the Insinkerator Pro 750’s Powerful Features
- 3⁄4 HP Dura-Drive induction motor – This motor delivers superior grinding power and longevity. It uses less electricity than standard disposers.
- SoundSeal technology – The Pro 750 is engineered for quiet operation at less than 60 decibels. This reduces noise in the kitchen.
- Galvanized steel grind components – The galvanized steel is highly resistant to rust and corrosion. This allows the grind chambers to last longer.
- Jam sensor circuit – If the disposal jams, this automatically increases motor torque to clear the jam. This prevents motor burnout.
- Auto-reverse grinding action – The bidirectional motor prevents jams by reversing direction every few seconds to clear debris.
- 40 oz. stainless steel grind chamber – The heavy duty chamber handles high volumes of food waste.
- Continuous feed operation – You can keep adding food waste while the Pro 750 is running. There’s no batch feed option.
With these features, the Insinkerator Pro 750 can grind nearly any food waste you throw at it. The powerful motor pulverizes waste thoroughly to prevent clogs. Next, let’s go over the installation process.
Step-by-Step Installation Guide for the Insinkerator Pro 750
Installing the Insinkerator Pro 750 is a fairly straightforward process. Here are the key steps:
1. Turn off power and water supply – Safety first! Locate the circuit breaker for the garbage disposal and switch it off. Then turn off the water supply lines under the sink.
2. Remove old disposal – If you’re replacing an existing disposal, you’ll need to disconnect it from the mount and plumbing before lifting it out.
3. Clear dishwasher drain line – Remove the dishwasher drain hose from the disposal drain pipe and clear out any waste.
4. Install new mounting assembly – The Pro 750 includes a pre-assembled mounting ring. Secure it to the sink flange using the included screws and snap ring.
5. Attach drain pipe – Use a wrench to tighten the disposal’s discharge tube onto the drain pipe, making sure the gasket is seated properly.
6. Connect dishwasher drain – Re-attach the dishwasher hose to the disposal’s inlet with a hose clamp. Make sure it’s secured tightly.
7. Wire the disposal – Connect the wires from your electrical outlet to the colored wires on the bottom of the disposal. Use wire nuts to secure the connections.
8. Mount disposal – Lift the disposal into place and rotate to line up with the mount. Use a screwdriver and the included snap ring to lock the disposal into place.
9. Install provided plumbing – The Pro 750 comes with its own discharge tube, flange, and dishwasher inlet. Use the included directions to properly install the plumbing.
10. Test and turn on – Double check the connections, especially the plumbing. Slowly turn on the water supply and test for leaks. Then flip the power back on at the circuit breaker.
With that, your Insinkerator Pro 750 should be fully installed and ready to grind! Be sure to run water through while testing it with some food waste. Overall, most homeowners can install a disposal in 30-60 minutes. Having the right tools like wrenches, pliers, and screwdrivers is key.
What’s Included in the Insinkerator Pro 750 Warranty?
The Insinkerator Pro 750 comes with a 7-year We Come To You limited in-home warranty. This warranty covers all parts and labor needed to repair your disposal.
If the Pro 750 breaks down or fails within the first 7 years, you simply need to call Insinkerator’s toll-free customer service line. A technician will be dispatched to your home to service or replace the unit. Note that this in-home service is only available in the United States and Canada.
The warranty does not cover issues caused by improper installation, abuse, or failure to maintain the disposal. Regularly inspecting and cleaning your Pro 750 is recommended to keep it running smoothly for years. The warranty also does not include trip or travel fees for home visits.
Overall, the 7-year in-home warranty provides excellent peace of mind when buying the Insinkerator Pro 750. Most competitors only offer 1-3 years of coverage. Insinkerator clearly stands behind the durability and performance of this heavy-duty disposal.
How the Insinkerator Pro 750 Compares to Similar Models
The Pro 750 sits near the top of Insinkerator’s product lineup. Here’s how it compares to other popular Insinkerator models:
- Badger 5 – The entry-level Badger 5 has a 1⁄2 HP motor, plastic components, and a 2-year warranty. It’s suitable for lighter grinding tasks.
- Badger 500 – A step up, the Badger 500 offers 3⁄4 HP motor, galvanized steel, and quieter operation. It lacks some noise insulation.
- Evolution Compact – Smaller capacity with a 3⁄4 HP motor and sound insulation. Good for tight spaces. Lacks auto-reverse grinding.
- Pro 333 – Very similar 1⁄3 HP model but with less capacity and warranty. Still has sound insulation which the 500 lacks.
- Pro 750 – The most powerful, durable and quietest of the lineup. Great for households with higher food waste volumes.
While the Badger and Pro 333 models are certainly cheaper, the Pro 750’s superior durability and warranty make it worth the additional investment for most homeowners. It’s simply the top of its class in terms of grinding ability, longevity, and noise levels.
Handy Tools Needed for a Smooth Insinkerator Pro 750 Installation
Installing the Insinkerator Pro 750 is a relatively easy DIY project, especially if you have the right tools on hand:
- Adjustable wrench – For loosening and tightening lock rings, discharge tube, dishwasher connections, and drain pipes.
- Plug wrench – Designed to effortlessly loosen the mounting lugs to remove your old disposal.
- Wire cutters/strippers – For cutting electrical wires to size and stripping insulation.
- Needle-nose pliers – Helpful for locking the snap ring into place to secure the disposal.
- Flathead screwdriver – Use to loosen and tighten the screws on the mounting ring and outer housing of the disposal.
- Tube cutter – For properly sizing the plastic dishwasher drain tube or discharge pipe to fit.
- Wire nuts & electrical tape – For joining the disposal’s electric wires to the supply wires.
- Bucket or pan – To catch any water that may leak when disconnecting plumbing.
- Safety glasses & work gloves – It’s always smart to protect your eyes and hands when doing plumbing and electrical work.
Having these basic tools makes installing the Insinkerator Pro 750 much simpler. You can get away with just using wrenches, pliers and screwdrivers if needed. But having the right tools is key to fast and hassle-free installation.
Troubleshooting Tips for the Insinkerator Pro 750
While the Insinkerator Pro 750 is designed for years of smooth, trouble-free operation, issues can occasionally arise:
- Humming noise – If a loud humming sound occurs, this usually indicates something is jammed in the disposal. Turn off, unplug, and carefully remove the object with tongs.
- Leaking – Leaks typically occur from loose fittings. Check that the discharge tube, dishwasher hose, and drain pipe are firmly hand-tightened. Use pipe tape on threads.
- Power button not working – First, test the built-in circuit breaker button on the bottom of the disposal. If that doesn’t reset, the issue may be no power. Check the circuit breaker and electrical connections.
- Frequent jamming – Avoid putting stringy foods, bones, corn cobs, rice and grease down the disposal to prevent jams. Run plenty of water when grinding.
- Reduced grinding ability – Over time, dull shredder rings or clogged impellers can reduce performance. Scheduling maintenance every 3-5 years preserves grinding power.
- Continuous running – If the Pro 750 runs nonstop, unplug it and allow any jams to clear. If issue persists, contact Insinkerator support to diagnose causes like stuck switches.
- Bad odors – Smelly disposals result from lack of use. Run some ice cubes and citrus rinds weekly to freshen it up. Also clean with baking soda and vinegar.
Following the installation and troubleshooting tips in the Pro 750 manual is also advised to keep it operating optimally. Overall, this disposal is built to run smoothly for years with minimal maintenance needed.
Where to Find the Best Price on an Insinkerator Pro 750
The Insinkerator Pro 750 averages around $300 – $350 on most major home improvement and appliance retailer sites. Here are some of the best places to buy and save:
- Home Depot – Often runs special promotions like 10% off or free shipping on the Pro 750. Be sure to check for any available deals.
- Lowes – Similarly offers discounts and coupons on the Pro 750 and other Insinkerator models. Sign up for their email list for savings alerts.
- Best Buy – The Pro 750 can be purchased in Best Buy stores or online. Occasional good sales.
- Walmart – Check Walmart’s website for closeout discounts on display units or small markdowns on new Pro 750s.
- Costco – For Costco members, this “big box” retailer carries the Pro 750 for competitive pricing.
- Amazon – Prime members often get the best deals on Amazon for the Pro 750 and free 2-day shipping. Beware of some unauthorized 3rd party sellers with inflated prices though.
Factory-direct refurbs – Insinkerator’s own website sometimes offers refurbished Pro 750 models direct from the manufacturer at nice discounts. These come with a 6-month warranty.
Checking multiple sellers will help find you the lowest price possible on the durable Insinkerator Pro 750 disposal. Comparison shopping pays off.
Technical Specs: The Insinkerator Pro 750’s 3⁄4 HP Motor & Power Rating
The Insinkerator Pro 750 utilizes a robust 3⁄4 horsepower Dura-Drive induction motor designed specifically for garbage disposals. It operates on standard 120-volt, 60 Hz household current and draws 8.1 Amps of power when running.
This motor delivers a whopping 2,800 RPMs of grinding power. The galvanized steel grind chambers and automated jamprotection system allow it to maintain maximum torque when pulverizing even very fibrous or dense waste.
Most homes have electrical service capable of handling the Pro 750’s power demands. However, older homes with 100 Amp or smaller capacity electrical panels may trip breakers if other major appliances like the stove or dryer are running simultaneously.
Users report the Pro 750 grinds 50% faster than 1⁄2 HP models. It reduces potato peels, carrot shavings, egg shells and other stubborn kitchen scraps to a fine slurry in seconds.
So while the Pro 750 is among the more power-hungry garbage disposals, its unmatched waste grinding performance makes the power rating very worthwhile for most households. Just be aware high-amperage appliances like dishwashers may need to be on separate circuits.
Expect at Least 10-15 Years of Service from Your Insinkerator Pro 750
With proper installation and maintenance, the average lifespan of the Insinkerator Pro 750 is approximately 10 to 15 years. There are several factors that contribute to the disposal’s longevity:
- The sturdy Dura-Drive motor is specifically engineered for years of frequent use. It stays lubricated and runs cool for longevity.
- The galvanized steel grind chamber, shredder ring, and impellers are highly resistant to corrosion and abrasion.
- The SoundSeal insulation reduces vibration that could loosen components over time.
- Automated jam-sensing helps prevent motor burnout.
- The removable splashguard is easy to take off to inspect and clean inside the grind chamber. This prevents buildup of grease and waste that reduces performance.
- All internal components are user-serviceable and replacements are readily available.
With proper maintenance like occasional grinding of ice cubes, citrus rinds or chicken bones, the Pro 750 is designed to operate problem-free for more than a decade. Compare that to lower-cost units with more plastic components that tend to fail sooner.
While not the cheapest disposal, the Insinkerator Pro 750’s unparalleled longevity provides great return on investment. It’s built to last in busy household kitchens.
Recommended Maintenance to Keep the Insinkerator Pro 750 Running Like New
While the Insinkerator Pro 750 is built for the long haul, performing occasional maintenance keeps it operating at peak grinding performance:
- Flush with ice – Running a tray of ice cubes through it monthly helps clean the inner workings and maintain sharp shredder blades.
- Use citrus rinds – Grinding citrus peels helps scrub away grease buildup and cleans inner walls. Lemon and orange rinds work great.
- Clean with baking soda and vinegar – Mixing 1 cup baking soda and 1 cup vinegar and running down the disposal freshens drain odors.
- Inspect/replace splash guard – The detachable splash guard fits under the sink flange and prevents leaks. Replace if cracked.
- Tighten connections – Vibration can loosen drain connections. Check fittings annually and tighten with a wrench if needed. Replace worn gaskets.
- Lubricate grinding components – Use non-toxic food grade lubricant to keep shredder ring and plates operating smoothly.
- Clear jams quickly – If it does jam, unplug immediately and carefully remove debris with tongs to prevent burnout.
Following Insinkerator’s recommended tips on routine maintenance and cleaning will maximize the working life of your investment and prevent premature repairs. Taking quick action at the first sign of any issue will keep the Pro 750 grinding smoothly for over a decade.
The Insinkerator Pro 750 Operates Quietly Below 60 Decibels
One significant advantage of the Insinkerator Pro 750 over lower-cost models is that it’s engineered for very quiet operation. Insinkerator’s patented SoundSeal technology keeps noise levels below 60 decibels.
For comparison, normal conversation is about 60 decibels. So the Pro 750 produces about as much background noise as someone talking. This is a significant improvement over older disposal designs that drone on at 70-80 annoying decibels.
Key design elements make this quiet performance possible:
- The grind chamber and internals are completely insulated with sound-dampening material. This reduces vibrations.
- The Dura-Drive induction motor runs cooler and smoother than less advanced motors. Less noise is produced.
- Rotating at only 1725 RPMs, the motor itself operates quietly compared to cheaper units.
- Anti-vibration components isolate and prevent transfer of noise.
With quiet operation as a design priority, the Pro 750 is ideal for open concept kitchens where conversation still needs to flow freely. The typical buyer doesn’t want an obnoxious grinding racket every time they clean up after meals. The Insinkerator Pro 750 delivers virtually silent food waste disposal.
Grinding Capacity: The Types of Food Waste the Pro 750 Can and Can’t Handle
The Insinkerator Pro 750 is equipped to grind most any type of food waste typically generated in home kitchens. Here’s an overview of what it can and can’t handle:
Ideal for Grinding
- Fruit and vegetable peels, skins, stems
- Meat and poultry scraps
- Egg shells
- Bread, rice, pasta
- Nut shells
- Coffee grounds and filters
- Shrimp/seafood shells
Not Recommended
- Grease or oil
- Large bones
- Expanded grains like popcorn
- Corn husks
- Cutlery or silverware
- Glass
- Plastic
The Pro 750 excels at grinding smaller bones like chicken and fish. The galvanized steel chamber and hardened shredder ring pulverize even fibrous waste like artichokes and corn husks that jam lesser models.
However, swallowed cutlery, glass, or bottle caps can potentially damage the unit. Bones over 3-4 inches long are also inadvisable. Overall though, the Pro 750 can safely and thoroughly grind up to 50% more waste volume than basic 1/2 HP disposals.
Budgeting $300-$450 for an Insinkerator Pro 750 Installation
The Insinkerator Pro 750 itself ranges from $300 – $350 depending on promotions and vendor sales. But other costs factor in for a total install:
- Disposal unit – $300 – $350, may include basic parts kit
- Plumber’s fee for install – Average $150/hour, takes 1-2 hours
- Electrical materials – Box, wire nuts, conduit; ~$20
- Plumbing parts – Dishwasher connector, drain pipe, fittings; ~$30
- Misc supplies – Wire, screws, pipe tape, tools; ~$20
With these factors, most homeowners spend around $400 – $450 total to purchase the Pro 750 and have it professionally installed. Doing it yourself instead of hiring a plumber saves about $150 in labor costs.
The premium price brings premium grinding ability and life expectancy. In the long run, you’ll save by not having to replace cheaper units that burn out or clog frequently. While not the cheapest upfront cost, the Insinkerator Pro 750 adds great value to any home.
Known Issues and Trouble Spots to Watch For
The Insinkerator Pro 750 is a very reliable disposal that runs smoothly for years. However, a few minor issues can occasionally arise:
- Leaking at connections – Loose drain or dishwasher line fittings are common sources of small leaks. Just needs tightened.
- Humming/buzzing – Indicates something jammed like broken glass or bottlecap. Unplug and carefully remove debris.
- Bad odors – Typically from lack of use. Run citrus rinds through regularly. Use baking soda and vinegar treatments.
- Dirty water backing up – Make sure knock-out plug was removed from inlet during install. Sub-optimal drainage slope may also cause backflow.
- Circuit tripping – High amp draw can trip older electrical panels, especially if other appliances shared circuit. May need rewiring.
- Corrosion – While rare on the stainless steel model, using corrosive cleaners or very acidic foods could eventually cause corrosion damage over time if not rinsed.
Thankfully, none of these issues are too serious to repair yourself. And Insinkerator’s great warranty covers defects. General reliability is excellent, especially compared to cheaper brands.
The Insinkerator Pro 750 Saves Energy with It’s Dura-Drive Induction Motor
The Insinkerator Pro 750 is designed for energy-efficiency in several ways:
- The induction-type Dura-Drive motor uses less electricity than universal type motors of the same horsepower. It runs cooler.
- The SoundSeal insulation helps minimize noise and premature wear that reduces service life.
- The jam-sensing and auto-reversing helps prevent motor burnout from stalls.
- The galvanized steel components stay sharper longer so the motor doesn’t labor excessively when grinding.
- The power-saving auto-reverse function periodically changes direction to clear jams.
According to Insinkerator, the Pro 750 uses up to 70% less energy than older, less efficient disposer designs. This adds up to significant savings over time.
In an age of rising energy costs, the Insinkerator Pro 750 represents the future of green garbage disposal. It delivers serious grinding power while still maintaining energy efficiency that saves you money. Going with a more advanced induction motor is a smart investment.
A Compact yet Capacious Stainless Steel Grind Chamber
Despite a smaller footprint than economy-size disposals, the Insinkerator Pro 750 still packs an ample 40 ounce stainless steel grind chamber.
To put this capacity into perspective:
- It equates to holding over 5 cups of volume.
- The average orange peel fills 1-2 oz. So you could grind 20 orange peels in one session.
- Egg shells take up very little room. The chamber likely holds 100+ egg shell equivalents.
- It takes 10 apples to make 1 cup of chopped apple pieces. So you could grind peel from 40 whole apples.
While not as massive as large disposals designed for restaurants, the Pro 750’s grind chamber handles serious waste volumes from even large families. And the stainless steel build resists corrosion far better than galvanized versions.
You’ll spend less time grinding batches of waste thanks to the Pro 750’s ideal balance of power and capacity in a more compact form factor. It gets the job done quickly.
Effortless to Upgrade Your Current Disposal to the Insinkerator Pro 750
Retrofitting your existing garbage disposal with a new Insinkerator Pro 750 unit could not be simpler:
1. Turn off electrical power – Locate the wall switch or circuit breaker controlling the disposal and turn it off for safety.
2. Twist off old unit – Use a special “disposal wrench” tool to disconnect the mounting lugs holding the old disposal in place. This takes seconds.
3. Disconnect plumbing – Loosen the dishwasher drain line, discharge pipe, and drain trap from the old disposal using a standard wrench. Set old unit aside.
4. Prep connections – Clean the discharge outlet in the sink and the discharge pipe. Inspect plumbing. Get new gaskets if leaking.
5. Mount new disposal – Hang the Pro 750 by aligning the 3 mounting tabs with the sink drain hole. Twist locking lugs from below until tight.
6. Connect plumbing – Re-attach the discharge pipe and dishwasher hose to the Pro 750, securing with a wrench. Attach drain trap.
7. Connect wiring – Attach the Pro 750’s wire connector to your electrical wires, matching colors. Turn power back on when complete!
It only takes about an hour for a novice DIYer to swap out the disposal. The Pro 750 comes with very clear instructions and requires no special plumbing skills. Just take precautions like wearing gloves and eye protection when handling drains.
What Customers Are Saying About the Insinkerator Pro 750
With thousands of customer reviews across major retailers like Home Depot and Amazon, the Insinkerator Pro 750 earns very high ratings and praise overall. Here’s what buyers like about it:
- Powerful grinding ability handles tough waste easily
- Much quieter than cheaper units
- Well-designed leak guard prevents leaking issues
- 7-year in-home warranty provides great peace of mind
- Durable construction built to last over a decade
- Easy to install and replace old disposer
- Significantly reduces amount of trash created
- Great value for the higher price
Negative reviews seem to be few and far between. Some people don’t appreciate the high price but admit the performance is worth it. A few defective units were easily replaced under warranty. All said, the vast majority of homeowners are highly satisfied and would recommend the Pro 750. It earns its reputation as the gold standard of garbage disposals.
Yes, the Insinkerator Pro 750 Can Safely be Used with Septic Systems
For homeowners on septic systems, the Insinkerator Pro 750 is an excellent garbage disposal option approved for use with septic tanks.
The key factor making it septic-safe is that it uses a standard sink drain line, unlike older batch feed disposals that sometimes tied into a house’s waste plumbing directly. As long as your drain plumbing runs to the septic tank, the Pro 750 will not cause any issues or added load.
Insinkerator’s grind technology pulverizes food waste into tiny particles that pose no threat of clogging septic systems. Meat, vegetables, egg shells – anything biodegradable – breaks down rapidly. The disposal doesn’t deposit solids into your tank.
However, some precautions are advised:
- Avoid grinding non-organic items like glass, twist ties, or cutlery that could wind up in the drain field.
- Use plenty of water when grinding to flush particles through.
- Have your tank pumped regularly to remove any solids that accumulate.
- Avoid pouring grease down the drain, even if ground up in the disposal first.
With proper usage, the Insinkerator Pro 750 is a great asset for any home with a septic system. It allows environmentally-safe disposal of food waste on your property rather than carting it to the landfill. Just use common sense regarding what you grind.
Step-by-Step Guide to Cleaning and Deodorizing the Insinkerator Pro 750
Regular cleaning keeps the Insinkerator Pro 750 free of odors and grinding effectively like new:
1. Unplug disposal – Always unplug appliance before inserting hands to clean it.
2. Remove splashguard – Use a screwdriver to loosen the clamp ring and slide off the sink flange cover for full access.
3. Clean exterior – Wipe down the visible stainless exterior parts with soapy water or disinfecting spray.
4. Freshen inside with baking soda – Pour 1/2 cup of baking soda down disposal opening and let sit 5 minutes before grinding.
5. Scrub with brush – Use a long-handled nylon brush to gently scrub the inner walls and plate. Never use metal brushes or scouring pads.
6. Flush with vinegar – Pour 1 cup white vinegar down the disposal and let sit another few minutes. It will foam and bubble, helping dissolve buildup.
7. Grind citrus rinds – Grind half of a lemon or other citrus fruit to scrub away stains and deodorize for freshness.
8. Flush with hot water – Finally, run hot water for a full minute to rinse away any residue and odors.
9. Replace splashguard – Reattach the splashguard once complete.
Regular cleaning every few months keeps odor and performance issues away. Avoid corrosive cleaners that could damage stainless parts. Treat the Pro 750 right and it will grind like new for over a decade.