Garbage Disposal Repair and Installation in Southwest Florida

What We Handle With Garbage Disposals

HomeFlow Plumbing repairs, replaces and installs garbage disposals in homes and businesses across Lee, Charlotte and Collier Counties. A disposal is a small appliance, but it sits right where your kitchen sink, your dishwasher drain and your home’s drain line all meet. When it fails, it usually takes the sink out of service with it.

Most calls we get fall into a few buckets: the unit hums and won’t spin, it’s dead silent, water is dripping into the cabinet, or the sink drains slow and smells. Some are simple fixes. Others point to a unit at the end of its life, or to a drain problem further down the line that the disposal is just making obvious.

This page covers disposals specifically. If your issue is a faucet, a sink drain, or a full kitchen layout, our kitchen plumbing page goes through that side of things.

Common Disposal Problems and What They Usually Mean

Disposals tend to fail in predictable ways. Here’s what we see most often and what’s usually behind it.

It hums but doesn’t spin

A hum means the motor is getting power but the flywheel can’t turn. Most of the time something is wedged between the grinding plate and the shredder ring: a fruit pit, a bottle cap, a bone, a piece of glass. Sometimes the plate has seized from sitting unused, which happens a lot in seasonal homes that sit empty for months. Leaving a jammed unit humming is hard on the motor, so shut it off at the switch.

It’s completely silent

No sound at all usually means no power reaching the motor. The most common cause is the thermal overload tripping. That’s the small red reset button on the bottom of the unit. It pops when the motor overheats, which often follows a jam. Other causes include a tripped breaker or GFCI, a loose plug, a bad wall switch, or a motor that’s simply done.

It keeps tripping the reset

If the reset pops once after a jam, that’s the system doing its job. If it trips every few days with normal use, the motor is overheating for a reason. That can be a partial jam, worn bearings, overloading the unit with too much at once, or a motor that’s wearing out.

It drains slowly or backs up into the other sink

On a double bowl sink, water backing up into the second basin when you run the disposal usually means a clog below the disposal, in the trap or the branch line, not in the unit itself. Fibrous scraps and grease tend to collect there. That’s a drain issue, and it’s often why a disposal gets blamed for something it didn’t cause.

Finding the Source of a Disposal Leak

Water under the sink with a disposal in the picture can come from several places, and the fix depends entirely on which one it is. We dry everything off, run water, and watch where it shows up first.

Leaks at the sink flange

The flange is the metal ring in the sink drain opening. It’s sealed with plumber’s putty or a gasket and held tight by the mounting assembly underneath. If water drips from the top of the unit where it meets the sink, the seal has failed or the mounting has loosened from vibration. This one is usually repairable by pulling the unit, cleaning the flange, and resealing it.

Leaks at the dishwasher inlet

The dishwasher drain hose connects to a small inlet on the side of the disposal with a hose clamp. A loose clamp or a cracked hose end will drip only when the dishwasher drains, which makes it easy to miss. Replacing the clamp or the hose often fixes it.

Leaks at the discharge connection

The discharge tube runs from the side of the disposal to the trap. It seals with a gasket and a flange bolted to the unit. Those gaskets can flatten and harden over time. A drip here is usually a parts fix.

Leaks from the body or bottom of the unit

If water is coming from the housing itself or from the bottom near the reset button, the internal seals have failed or the grinding chamber has corroded through. That isn’t a repair. The unit needs to be replaced.

Repair or Replace

We’d rather fix a disposal than sell you a new one when a fix makes sense. Jams, flange leaks, loose dishwasher connections, worn discharge gaskets and wiring at the plug are all fair game for repair.

Replacement makes more sense in these situations:

• The body is leaking from the inside, which means the seals or housing are gone.
• The motor hums with nothing jammed in it, or won’t run after the reset and power are confirmed.
• The reset trips over and over with normal use.
• The grinding components are badly corroded or the unit has gotten noticeably louder and rougher.
• The unit is undersized for how your household actually uses it.

We’ll tell you which side of that line your disposal falls on. If the unit is fine and the problem is downstream in the drain, we’ll say that too.

What Not to Put Down a Disposal

Most disposal jams and a lot of kitchen drain clogs come down to what goes in. A disposal grinds food into small particles. It does not make that material disappear. Everything still has to travel through your trap, your branch line, and out to the sewer or septic tank.

• Grease, oil and fat. They go down liquid, cool in the pipe, and coat the walls. Wipe pans out and put grease in the trash.
• Fibrous scraps like celery, onion skins, corn husks, asparagus and artichoke leaves. The strings wrap around the grinding parts and mat together in the trap.
• Starchy food such as rice, pasta and potato peels. They swell with water and turn to paste.
• Coffee grounds and eggshells. They don’t jam the unit, but they settle in the drain line like sand.
• Bones, fruit pits and shells from shrimp, clams and oysters. Hard, dense material is the most common cause of a hum and a seized flywheel.
• Anything that isn’t food. Twist ties, bottle caps, utensils, paper towels and produce stickers all end up in there eventually.

Run a good stream of cold water before, during and for several seconds after grinding. Cold water keeps any fat solid enough to be chopped and carried away instead of smearing along the pipe. Feed scraps in gradually rather than stuffing the chamber full.

Sizing and Horsepower in Plain Terms

Residential disposals are mostly sold in a range from about 1/3 horsepower up to around 1 horsepower. Higher horsepower generally means more grinding torque, finer particles, and fewer jams. It also tends to mean a larger and heavier unit, which matters in a tight sink cabinet.

• Smaller units suit light use: a couple of people, mostly rinsing plates.
• Mid-range units fit most families who cook regularly.
• Larger units make sense for heavy cooking, bigger households, and homes on septic where finer grinding helps.

Disposals are also built two ways. Continuous feed models run while the switch is on and you feed scraps in as you go. Batch feed models only run when a stopper is locked in place, which keeps hands and silverware out of the chamber. Batch feed units don’t need a wall switch, which can simplify things on a retrofit.

Before we install a new unit, we check the cabinet height, the distance to the trap arm, and how the dishwasher hose will route. A disposal that’s taller than the old one can drop the discharge below the trap arm, and that creates a drainage problem you’ll fight forever.

Garbage Disposals and Septic Systems

A large share of homes in our area are not on city sewer. Researchers at Florida Atlantic University have estimated that Lee County alone has roughly 100,000 septic systems, counting known and likely ones. Plenty of homes in Lehigh Acres, North Fort Myers, Alva, parts of Cape Coral, and rural Charlotte and Collier County still rely on a tank and a drainfield. If you’re not sure what you have, our Lehigh Acres wells, septic and sewer guide explains how to find out, and the Cape Coral UEP sewer and water hookup guide covers the city’s conversion program.

The EPA’s homeowner guidance is direct about this. It recommends eliminating or limiting disposal use on a septic system because it adds fats, grease and solids that can clog the drainfield, and it says that if you do use a disposal, the tank will need to be pumped more frequently. The same guidance says household tanks are typically pumped every three to five years, so a disposal pushes you toward the shorter end of that window or beyond it.

You can run a disposal on septic. Do it with your eyes open:

• Use it lightly. Scrape plates into the trash or a compost bin and save the disposal for what’s left.
• Keep grease out completely. On septic it floats into the scum layer and can reach the drainfield.
• Consider a higher horsepower unit that grinds finer.
• Tell your septic service provider you have a disposal so they can set a pumping schedule that fits.
• Avoid relying on additives as a substitute for pumping.

If your septic tank is already struggling, adding or upgrading a disposal is the wrong move until that’s addressed. Slow drains across the whole house, gurgling, or wet spots over the drainfield point to a bigger problem than the kitchen sink.

Dishwasher Connections, Air Gaps and the High Loop

Most kitchens route the dishwasher drain hose into the disposal. That’s allowed, but the hose has to be installed so dirty sink water can’t siphon or back up into the dishwasher. The plumbing code most of the country works from, which Florida’s plumbing code is based on, gives two ways to do that when a dishwasher discharges into a sink tailpiece or a disposal:

• A deck mounted air gap, the small chrome or plastic cap you see on the sink or counter next to the faucet. The dishwasher hose runs up to it, and a second hose runs down to the disposal. If the drain backs up, water spills out of the air gap instead of flowing back into the dishwasher.
• A high loop, where the drain hose rises and is securely fastened to the underside of the counter or sink rim before dropping down to the disposal inlet.

Which one your local jurisdiction expects can vary, and some areas and some dishwasher manufacturers specifically call for an air gap. We install to what the code and the appliance instructions require for your location. What we see too often is neither: a hose lying flat on the cabinet floor, straight into the disposal.

The knockout plug

New disposals come with a plastic plug sealing the dishwasher inlet. It has to be knocked out before the dishwasher hose is connected. If someone installs a new disposal and forgets, the dishwasher won’t drain at all. It’s one of the most common reasons a dishwasher stops draining right after a disposal swap, and it’s an easy fix once you know to look for it.

If the dishwasher drains poorly even with the connection right, the hose may be kinked, or the disposal inlet may be packed with food. We check both.

Electrical: Plug In or Hardwired

Disposals get power one of two ways. Many are plug in, using a cord that goes to an outlet under the sink, usually controlled by a wall switch. Others are hardwired, with the cable running directly into a junction box on the bottom of the unit.

Swapping a plug in unit for another plug in unit, or reconnecting existing hardwiring to a new unit of the same type, is a normal part of disposal replacement. Some new disposals ship without a cord, so we’ll add the right cord kit when the outlet is already there.

Anything beyond that is electrician work. That includes adding a new outlet or switch, running a new circuit, moving a switch, or fixing a GFCI or breaker problem. If your kitchen has never had a disposal and there’s no power under the sink, we’ll handle the plumbing side and let you know the electrical needs to be done by a licensed electrician before the unit can run.

Installing a Disposal Where There Wasn’t One

Adding a disposal to a sink that never had one takes more than bolting a unit to the drain. We look at a few things first:

• Whether the sink drain opening is the standard size for a disposal flange. Most are, but some specialty sinks aren’t.
• Whether there’s enough room under the sink for the unit plus the trap.
• Whether the trap arm in the wall is high enough for the disposal’s discharge to drain properly.
• Whether the home is on septic, and how the household plans to use the unit.
• Whether there’s power under the sink or an electrician needs to add it.

If the drain height doesn’t work, the fix may mean adjusting the trap or the drain connection in the wall. That’s work we do, and it’s better to know up front than to find out after the cabinet is full of a unit that won’t drain.

When the Problem Is the Drain, Not the Disposal

A lot of what feels like a disposal problem lives a few feet further down the pipe. Ground food, coffee grounds and grease build up in the trap and branch line over time. Older homes with cast iron drains can have rough, scaled interior walls that catch debris faster. Our article on cast iron drain failure in Fort Myers covers what that looks like.

If the disposal spins fine but the sink still drains slowly, or both bowls of a double sink are backing up, the next step is clearing the line. Our drain cleaning service handles kitchen line clogs, and heavier grease buildup sometimes calls for hydro jetting. When several fixtures around the house back up at once, the problem is likely in the main line rather than anything under the kitchen sink.

Simple Upkeep Between Service Calls

A disposal doesn’t need much, but a few habits make a real difference in how long it lasts.

• Run it a few times a week even if you don’t have much to grind. Units that sit idle are more likely to seize.
• If you’re leaving for the season, run water through it before you go and again when you come back.
• Grind a handful of ice cubes now and then to knock buildup off the grinding chamber.
• Clean the rubber splash guard. Odors often come from food stuck on the underside of it rather than inside the unit.
• Never put chemical drain cleaners in a disposal. They can damage the unit, and they’re dangerous for anyone who has to work on it afterward.

If a jam does happen, turn off the power first. Many units have a hex socket in the center of the bottom that takes a small wrench to rock the flywheel free. Never put your hand in the chamber. If that doesn’t free it, give us a call.

Disposal Service Across Southwest Florida

We work on garbage disposals throughout Lee, Charlotte and Collier Counties, including Fort Myers, Cape Coral, Lehigh Acres, Estero, Bonita Springs, Punta Gorda, Port Charlotte and Naples. A disposal job is often a good time to take care of other things under the sink, like a dripping supply valve or a corroded trap, so let us know if anything else in the kitchen is bothering you.

Call (239) 518-4198, email help@homeflowfl.com, or send a request through our contact page. Tell us what the unit is doing, whether you’re on sewer or septic, and whether the dishwasher drains through it. That helps us show up with the right parts.