A powder room with a standard water closet but little clearance calls for a bowl that saves space without sacrificing comfort. You may also be fitting a toilet into a basement where the sewer drain sits awkwardly, where installation planning matters more than squeezing into a narrow closet. These six options cover both problems, with floor-mounted compact bowls and macerating systems built for unconventional drain routes.
The Main Contenders
KOHLER K-5172-NY San Souci Comfort Height Compact Toilet
Simple Project 750W PRO Macerator
Simple Project 600W Macerator
Simple Project 500W 4-Inlet Macerator
Simple Project 1000W Macerator
Simple Project 600W Basement Macerator
Inside Each Recommended Option
A powder room with a standard drain but limited clearance calls for a bowl that saves room without giving up an elongated profile. The KOHLER K-5172-NY pairs that compact bowl with chair-height seating, giving most adults a more natural position for sitting and standing.
The AquaPiston canister directs water into the bowl from every side, while the 1.28-gallon flush limits water use. Unlike the macerating systems below, this model reduces the bowl’s footprint rather than solving a difficult waste route.
Good Reasons To Consider
- The elongated bowl retains added usable space while fitting within the footprint of a round-front design.
- Comfort Height seating supports easier positioning for most adults.
- AquaPiston sends water toward the bowl from all directions.
- The included K-4008 seat adds a soft-close feature to the compact footprint.
Worth Noting
- The left-hand trip lever makes handle placement an important pre-purchase check.
Key Specs
Who It Suits Best
This model suits homeowners fitting a comfortable toilet into a compact powder room with conventional plumbing.
Where Another Pick Suits Better
The Simple Project 1000W Macerator serves a basement where reaching the sewer line matters more than minimizing the toilet footprint.
A basement bath is often constrained by the drain route rather than the room’s width. The Simple Project 750W PRO Macerator uses a 750W motor, stainless steel cutting blades, and a pump rated to move waste up to 360 feet horizontally or 36 feet vertically.
Four water inlets allow the system to accept wastewater from several bathroom fixtures. Compared with the KOHLER compact bowl, it sacrifices the familiar floor-mounted footprint to open up difficult basement and attic installations.
Everyday Advantages
- The 750W pump targets demanding routes with substantial horizontal or vertical travel.
- Four inlets let you combine a toilet with fixtures such as a shower or sink.
- Stainless steel blades break waste down before it enters the discharge line.
Practical Considerations
- Its two-piece construction adds a seam and separate tank to the installation.
- Measured route distance, including turns and vertical changes, should guide your choice.
Feature Snapshot
Made For
This system fits DIY renovators and homeowners building a basement bathroom with a long or elevated waste route.
Consider Something Else When
The KOHLER K-5172-NY San Souci Comfort Height Compact Toilet is the better option for a conventional powder room with little floor space.
A basement bedroom or finished lower level can benefit from a macerating toilet placed where the main sewer stack is more convenient. The Simple Project 600W Macerator combines a 600W motor with a rear outlet and a design oriented toward quieter operation.
Its four water inlets can accept waste from a shower, laundry area, or wash basin, creating a coordinated bathroom system. The 750W PRO Macerator carries a higher motor rating, while this model emphasizes a quieter approach and flexible fixture connections.
Useful Touches
- Four inlets make it possible to combine multiple wastewater sources in one basement bath.
- The quieter operating focus suits rooms where normal activity occurs close to the toilet.
Small Caveats
- The 600W motor falls below the 750W and 1000W figures of two other picks, so especially difficult routing may favor more power.
- The rear outlet must align with the discharge plan, so measure the available route before ordering.
Right Fit For
This system suits homeowners creating a compact, quiet basement bathroom around several connected fixtures.
Not Your Match When
The Simple Project 1000W Macerator is the stronger candidate for a basement with unusually long or steep waste routing.
Not every basement needs the largest pump in the group. The Simple Project 500W 4-Inlet Macerator combines a 500W motor, an extension pipe, and a flushing system rated at 1.6 gallons per flush.
Its four inlets support mixed bathroom plumbing, while the quiet-oriented design keeps the operating focus on shared lower-level spaces. Compared with the 600W Macerator, it offers a similar multi-fixture approach with a lower motor rating and a larger stated flush volume.
What Makes Sense
- Four inlets suit bathrooms that combine a toilet with a shower, sink, or laundry fixture.
- The included extension pipe provides routing flexibility behind the fixture.
- The 1.6-gallon flush gives you a clearly stated operating specification.
- The quieter design targets lower-level rooms where the toilet sits near living space.
Trade-Offs To Consider
- Its 1.6-gallon flush uses more water per operation than the KOHLER model’s 1.28-gallon flush.
- The 500W motor may be less suited to demanding routes than the 750W or 1000W alternatives.
Technical Highlights
Best Suited To
This system suits DIY renovators creating a multi-fixture basement bathroom with a moderate waste route.
Look Elsewhere When
The Simple Project 1000W Macerator offers a higher motor rating for installations with more demanding routing needs.
Some basement installations need more than a modest lift from a macerating pump. The Simple Project 1000W Macerator uses a 1000W motor and is rated to pump waste as far as 40 feet, with an extension pipe and four water inlets included.
That makes it the high-output choice in this group for a basement bathroom with a demanding discharge path. The trade-off is a larger motor specification than the 500W and 600W options, so the installation plan should account for the associated equipment requirements.
Real-World Strengths
- The 1000W motor provides the highest stated power rating among these systems.
- A pumping reach of up to 40 feet supports more challenging discharge routes.
- Four inlets and an extension pipe support a multi-fixture basement layout.
Points To Watch
- A higher motor rating does not replace a site-specific review of pipe length, turns, and vertical rise.
- This option is more specialized than the KOHLER compact toilet, which suits a standard powder room with gravity drainage.
Who Will Love This
This system suits experienced renovators handling a basement bathroom with a long, elevated, or otherwise difficult waste route.
A Better Fit Elsewhere
The Simple Project 500W 4-Inlet Macerator is a more measured choice for a basement with a moderate route and several fixture connections.
A one-piece macerating toilet can turn an awkward lower-level bathroom location into a practical layout. The Simple Project 600W Basement Macerator has a one-piece body, a 600W pump, and three water inlets for connecting nearby bathroom fixtures.
Its pump is rated for up to 295 feet horizontally and 30 feet vertically, giving you more routing latitude than a standard gravity toilet. Compared with the 750W PRO Macerator, it uses one fewer inlet and a shorter stated vertical reach, but remains a capable option for many basement layouts.
What Works In Its Favor
- The one-piece body gives the basement toilet a visually unified shape.
- Three inlets support a toilet plus two wastewater-producing fixtures.
- The 295-foot horizontal rating accommodates a substantial discharge run.
Areas To Watch
- Its 30-foot vertical rating falls below the 36-foot figure given for the 750W PRO Macerator.
- A one-piece body does not remove the need to plan the outlet and incoming fixture lines.
Details At A Glance
The Right Fit
This model suits apartment renovators and homeowners fitting three wastewater sources into a basement bathroom.
Another Choice May Suit
The Simple Project 750W PRO Macerator is the better fit when you need four inlets, a 750W motor, and a greater stated vertical reach.
Measure the Room, Drain Route, and Use
Footprint and Sitting Height
A compact toilet still needs enough wall clearance, side space, and access to the flush control. Measure from the finished wall to the drain center, then compare that rough-in measurement with the model’s installation requirements before buying.
Elongated bowls can provide more usable seating space than round-front bowls without necessarily taking more room from the front. Comfort Height adds a chair-like seat position, which may be more useful to you than a lower profile in a powder room.
Gravity Drain or Macerator
A macerating toilet grinds waste and pumps it through a discharge pipe, making it useful where gravity drainage is difficult. The KOHLER K-5172-NY is a conventional floor-mounted toilet for an existing drain, while the Simple Project models address awkward basement routes.
Don’t judge these systems by bowl size alone. Your pipe route, vertical rise, sewer connection, and electrical requirements determine whether a macerating setup makes sense.
Fixture Connections and Pump Reach
Water inlets determine how many fixtures can feed the macerating system. Four-inlet options suit bathrooms with a toilet plus three additional wastewater sources, while the three-inlet model covers a toilet and two fixtures.
Pump reach is a maximum under stated conditions, not a promise for every installation. Turns, pipe diameter, joint design, and vertical changes can affect the route, so a qualified installer should assess the complete path.
Avoiding Common Toilet Sizing Mistakes
Wrong Turns To Avoid
The most common mistake is measuring only the room’s width while ignoring the toilet’s projection and side clearance. Another mistake is expecting a macerating toilet to be physically smaller, even though its main benefit is routing flexibility rather than a reduced footprint.
What Separates Premium From Basic
A higher motor rating, more water inlets, and a longer stated pump reach usually benefit basements with demanding layouts. Those additions matter less in a conventional powder room, where a 1.28-gallon compact bowl with comfortable seating may be the more sensible investment.
Frequently Asked Questions
Do Compact Toilets Use Less Space?
A compact bowl can reduce the space needed around a standard toilet without eliminating clearance for use. The KOHLER K-5172-NY uses a compact elongated bowl that occupies the same floor area as a round-front design.
Are Macerating Toilets Good for Basements?
Often, yes, because they pump waste toward a suitable drain line. They are most useful where gravity plumbing cannot reach the sewer connection conveniently.
What Does Comfort Height Mean?
Comfort Height describes a chair-height seat that makes sitting and standing more comfortable for most adults. The KOHLER K-5172-NY includes this elevated seating arrangement.
How Many Water Inlets Do You Need?
Count every fixture that will send wastewater into the macerating system, including the toilet, sink, shower, and laundry fixture. The Simple Project 500W 4-Inlet Macerator and 600W Basement Macerator offer different connection counts for those layouts.
Do Macerating Toilets Use Less Water?
Not automatically, because water use depends on the model’s flush design. The KOHLER model uses 1.28 gallons per flush, while the Simple Project 500W 4-Inlet Macerator is rated at 1.6 gallons.
Closing Remarks
The KOHLER K-5172-NY is the clearer choice for a genuinely tight powder room with ordinary plumbing. For basements, the macerating systems differ more in motor output, connection count, and stated reach than in basic toilet function, so map your drain route before choosing one. The most compact-looking option is only a good fit when its plumbing plan works for your room.