WasteMaid Pro 659, 1/2 HP Garbage Disposal Review

Not every disposal in a brand’s lineup is built off the same platform, and the WasteMaid Pro 659 is proof of that inside Waste Maid’s own catalog. Where the standard 10-US-WM series runs on the familiar 3-bolt Torque Master design, the Pro line swaps in a Speed Master mounting system built around one specific promise: getting the old unit out and the new one in with fewer tools and less time under the sink.

The WasteMaid 10-US-WMP-659 is the 1/2 HP entry in that Pro lineup, and it brings a couple of features you won’t find on Waste Maid’s standard-tier disposals, including Bio Shield antimicrobial odor protection built into the grinding chamber itself. This isn’t a rebadge of the 058 or 158 models covered elsewhere on this site. It’s a different platform aimed at buyers who value installation speed and odor control as much as raw grinding power.

This review covers what actually changes with the Speed Master mount, whether Bio Shield makes a real difference, and how the Pro 659 stacks up against Waste Maid’s own standard-tier 1/2 HP models.

WasteMaid Pro 659, 1/2 HP Anti-Jam Garbage Disposer Specifications

Specification	Details
Brand	WasteMaid Pro
Model Number	10-US-WMP-659
Horsepower (HP)	1/2 HP
Motor Type	2600 RPM Motor, Instant Full Torque
Feed Type	Continuous Feed
Grinding Components	Stainless Steel
Grind Chamber Capacity	29 oz
Mount Type	Speed Master Mounting System
Voltage	110V
Product Dimensions	7 × 7 × 13.75 inches
Item Weight	9 lbs
Color / Finish	Black
Included Components	Disposer, Power Cord (pre-connected), Flange, Elbow Kit
Certifications	CSA Certified, ETL Listed, UL Listed
Septic Safe	Yes (per manufacturer guidelines)
Warranty	5-Year Limited Warranty plus Lifetime Corrosion Warranty

WasteMaid Pro 659, 1/2 HP Anti-Jam Garbage Disposer Key Features

1/2 HP Motor with Instant Full Torque

The Pro 659 spins at 2600 RPM and reaches full torque the moment the motor engages, which the manufacturer specifically credits with reducing jams right at startup, the point where a lot of grinding problems actually begin. Horsepower on the packaging reflects rated capacity rather than the exact power draw during every cycle, a disclosure WasteMaid includes just like most of the industry does at this point.

At 1/2 HP with a 29 ounce grind chamber, this unit is sized for the food waste a typical household produces daily, plate scraps, coffee grounds, vegetable trim, without needing to feed waste in small, careful batches.

Speed Master Mounting System

Here’s the actual headline feature. Instead of the 3-bolt Torque Master mount used on Waste Maid’s standard-tier disposals, the Pro 659 uses what the manufacturer calls a Speed Master mount, built to require minimal tools and less time for a new installation. If you’ve replaced a disposal before and remember wrestling with a mounting ring under a cramped cabinet, this is the specific problem Speed Master is designed to solve.

That said, if you’re replacing an existing disposal that already uses a standard 3-bolt mount, it’s worth checking compatibility before you buy, since the mounting hardware here isn’t identical to the WM-058 or WM-158 models in Waste Maid’s standard line.

Bio Shield Antimicrobial Odor Protection

This is a feature you won’t find on Waste Maid’s standard 3B series at all. The grinding chamber includes Bio Shield antimicrobial protection, built specifically to reduce the odor-causing bacteria that tend to build up in a disposal chamber over weeks of regular use. A disposal that smells clean after grinding fish scraps or old produce is doing something most budget-tier units don’t bother engineering for.

Stainless Steel Grinding Components with Sound Insulation

Every grinding component is stainless steel, resisting the corrosion that eventually degrades cheaper galvanized alternatives. The grinding assembly itself is described as perfectly balanced to reduce vibration, and the housing includes sound insulation, a genuine step up from a bare, uninsulated motor shell in terms of how much noise reaches the kitchen above.

Installation and What’s Included

The box includes the disposer, a pre-connected power cord, a mounting flange, and an elbow kit, covering what most buyers need for a standard plug-in installation without separately sourcing hardware. Combined with the Speed Master mount, this is a disposal built around minimizing how long you’re actually under the sink.

Maintenance

Like most permanently lubricated disposals, don’t attempt to oil the motor. Run cold water while grinding to keep grease and fats solid enough to flush through rather than build up in the chamber. Avoid lye based or chemical drain cleaners entirely, since corrosion damage from those products typically falls outside warranty coverage regardless of brand.

Daily Use Experience

Day to day, the Pro 659 handles typical household waste without drama, and the instant-torque motor means there’s no lag between flipping the switch and grinding actually starting. The Bio Shield chamber is the detail that shows up over weeks rather than on day one. A standard disposal chamber that’s ground fish or onion scraps can hold onto that smell longer than you’d expect, and this is specifically engineered to cut that down.

Warranty

WasteMaid Pro backs the 659 with a 5-year limited warranty, according to the brand’s official warranty terms, plus a separate lifetime warranty against corrosion failure. It’s worth noting that Amazon’s own listing for this model doesn’t display warranty details directly and instead directs buyers to request terms from customer service, so confirming coverage before purchase, or keeping this review bookmarked as a reference, is a reasonable extra step.

WasteMaid Pro 659, 1/2 HP Anti-Jam Garbage Disposer Pros and Cons

WasteMaid Pro 659 vs Waste Maid’s Standard 1/2 HP Line

Feature	WasteMaid Pro 659	Waste Maid 10-US-WM-058-3B
Motor Power	1/2 HP	1/2 HP
Mounting System	Speed Master	Standard 3-Bolt
Odor Protection	Bio Shield antimicrobial chamber	Not included
Sound Insulation	Yes	Not specified
Warranty	5 Years plus Lifetime Corrosion	6 Years plus Lifetime Corrosion
Best For	Faster installs, odor control priority	Buyers wanting a longer proven track record

Further Reading:
Waste Maid 10-US-WM-058-3B 1/2 HP Garbage Disposal
Eco Logic EL-7 Mid-Duty 1/2 HP Garbage Disposal
American Standard 10-US-AS-5 1/2 HP Garbage Disposal

Conclusion

The WasteMaid Pro 659 isn’t a repackaged version of Waste Maid’s standard 1/2 HP disposal, it’s a genuinely different platform built around two specific priorities: getting installed faster with the Speed Master mount, and staying odor-free longer with Bio Shield protection. Both are real, engineered differences, not marketing language layered onto the same internals.

Where it comes up short of the standard 10-US-WM-058-3B is track record. The Pro 659 has a fraction of the reviews and a shorter base warranty by one year. If installation speed and odor control matter more to your buying decision than a long public review history, the Pro 659 delivers on both. If you’d rather lean on thousands of existing owner reviews and a slightly longer warranty, the standard 058 is the safer bet.