SANIFLO Macerator Pumps – Complete Model Comparison & Buying Guide
Confused about which SANIFLO macerator you need? This guide compares popular SANIFLO pumps including SANIFLO UP, Sanitop UP, Sanislim, Sanipro XR UP, Saniaccess 3, Saniplus UP and Sanibest Pro. Compare applications, connections, pumping capabilities, noise levels and maintenance features before choosing a macerator for your toilet, en-suite or complete bathroom.
What Is a SANIFLO Macerator Pump?
A SANIFLO macerator is a powered wastewater unit designed to make installing a WC or bathroom possible where conventional gravity drainage would be difficult. Depending on the model, a SANIFLO can accept wastewater from a WC and additional bathroom fixtures before pumping it towards the property's drainage system through relatively small-diameter discharge pipework.
Different SANIFLO models are designed for different applications. Some are intended for a WC only, others can handle a WC and wash basin, while larger multi-inlet models can serve a complete bathroom. Choosing the correct model is therefore important.
Which SANIFLO Do I Need?
Start with the appliances you need to connect. This is usually the easiest way to narrow down the correct type of SANIFLO macerator.
SANIFLO Macerator Comparison Chart
Use this table as a quick guide to the main differences between the models covered on this page.
| Model | Typical Use | Inlets | Motor | Noise | Recommended Vertical | Discharge | Key Feature |
|---|---|---|---|---|---|---|---|
| SANIFLO UP | WC only | 1 | 400 W | 46 dB(A) | 4 m | 22 / 28 / 32 mm | Simple WC macerator with top access |
| Sanitop UP | WC + wash basin | 2 | 400 W | 46 dB(A) | 5 m | 22 / 28 / 32 mm | Additional basin connection |
| Sanislim | Compact bathroom | 4 | 400 W | 48 dB(A) | 2.5 m | 22 / 28 / 32 mm | Slimline design |
| Sanipro XR UP | Complete domestic bathroom | 4 | 400 W | 46 dB(A) | 5 m | 22 / 28 / 32 mm | Complete bathroom solution |
| Saniaccess 3 | WC + basin + shower + bidet | 4 | 400 W | 46 dB(A) | 5 m | 22 / 28 / 32 mm | Double maintenance access |
| Saniplus UP | Multi-fixture bathroom | Multiple | — | 46 dB(A) | 5 m | 22 / 28 / 32 mm | Bathroom installation solution |
| Sanibest Pro | Demanding / commercial applications | 4 | 1100 W | — | 7 m | Model specific | Pro X K2 grinder |
Pumping distances are not standalone guarantees. Vertical lift, horizontal pipework, bends, fittings and discharge configuration affect actual performance. Always follow the installation instructions for the specific model.
SANIFLO UP
A straightforward SANIFLO macerator designed for a single WC.
SANIFLO UP is designed specifically for a WC only. This makes it a logical option when you simply need to add an additional toilet and do not need to connect a basin, shower or other bathroom appliance to the macerator.
✓ Advantages
- Simple WC-only configuration
- 400 W motor
- 46 dB(A) stated noise level
- 22/28/32 mm discharge options
- Top maintenance access
- Direct basket access for certain blockages
- Identical pipe centres for easier replacement of an older compatible model
- Activated carbon filter supplied to help neutralise odours
Things to Consider
- Only one inlet
- Designed for a WC rather than a complete bathroom
- Domestic use only according to the supplied product sheet
- If you also need a basin connection, consider Sanitop UP instead
The SANIFLO UP product information specifies a 100 mm external inlet, 22/28/32 mm external discharge options, a maximum incoming water temperature of 35°C and IP44 protection.
SANIFLO Sanitop UP
Two-inlet macerator designed for a WC and wash basin.
Sanitop UP builds on the basic WC macerator concept by adding a second connection for a wash basin. This makes it particularly useful for creating a small cloakroom or toilet room containing both a WC and hand basin.
✓ Advantages
- Designed for a WC and wash basin
- Two inlets
- 400 W motor
- 46 dB(A) stated noise level
- 22/28/32 mm discharge options
- Top maintenance access
- Direct basket access for certain blockages
- Identical pipe centres for easier replacement of an older compatible model
Things to Consider
- Designed for WC + wash basin rather than a full bathroom
- Not the appropriate choice where shower and bath connections are required
- Specified for domestic use
- Check the 40 mm basin inlet position before installation
Sanitop UP uses 40 mm and 100 mm external inlet diameters and 22/28/32 mm discharge options. The supplied specification also states a maximum incoming water temperature of 35°C and IP44 protection.
SANIFLO Sanislim
A compact four-inlet macerator designed for restricted spaces.
Sanislim is designed for installations where available space is limited. Its slimline casing can make it particularly useful in small bathrooms and compact en-suites.
✓ Advantages
- Slimline design
- Four inlets
- 400 W motor
- 22/28/32 mm discharge
- Suitable for multi-fixture bathroom layouts
Things to Consider
- Lower recommended vertical lift than several other models in this guide
- Choose primarily where compact dimensions provide an installation advantage
- Correct appliance and pipe heights remain important
SANIFLO Sanipro XR UP
Four-inlet macerator designed for a complete domestic bathroom.
Sanipro XR UP provides four inlets and is designed to make installation of a complete bathroom possible where direct gravity drainage is difficult.
✓ Advantages
- Designed for a complete bathroom
- Four inlets
- Top maintenance access
- Direct basket access
- 22/28/32 mm discharge options
Things to Consider
- Specified for domestic use
- Shower tray and inlet heights must be considered
- Pipe layout affects final pumping performance
SANIFLO Saniaccess 3
Four-inlet bathroom macerator with double maintenance access.
Saniaccess 3 can accept a WC, wash basin, shower and bidet. Its distinguishing feature is the double maintenance access designed to simplify certain servicing and blockage situations.
✓ Advantages
- WC, basin, shower and bidet capability
- Double maintenance access
- Direct basket access
- Four inlets
- Suitable for rental-property applications
Things to Consider
- Not a direct replacement for every other SANIFLO
- Inlet heights can differ between models
- Minimum shower tray height must be respected
SANIFLO Saniplus UP
A multi-fixture solution for creating an additional bathroom.
Saniplus UP is designed for bathroom installations requiring connections from multiple sanitary appliances and a pumped discharge where gravity drainage is impractical.
SANIFLO Sanibest Pro
Powerful grinder macerator for more demanding applications.
Sanibest Pro differs considerably from the standard 400 W domestic models in this comparison. It uses a powerful 1100 W motor together with SFA's Pro X K2 grinder system.
✓ Advantages
- 1100 W motor
- Pro X K2 grinder system
- Four inlets
- Higher pumping capability
- Commercial-premises applications included in supplied documentation
Things to Consider
- Greater capability may be unnecessary for a simple domestic WC
- Installation requirements need to be matched to the intended application
- Maximum figures depend on the complete pipe configuration
SANIFLO Model Differences Explained
SANIFLO UP vs Sanitop UP
SANIFLO UP is designed for a WC only. Sanitop UP adds a second inlet so a wash basin can also be connected. Sanitop UP also has a stated recommended maximum vertical height of 5 m, compared with 4 m for SANIFLO UP.
Sanipro XR UP vs Saniaccess 3
Both are four-inlet 400 W bathroom macerators. Saniaccess 3 places particular emphasis on double maintenance access, whereas Sanipro XR UP is positioned as a complete-bathroom solution with top access.
Sanislim vs Sanipro XR UP
Sanislim's main advantage is its slimline dimensions. Sanipro XR UP offers a higher recommended vertical figure and is designed around complete-bathroom installation.
Sanibest Pro vs Standard Models
Sanibest Pro uses an 1100 W motor and Pro X K2 grinder system, making it a very different proposition from the 400 W domestic models covered in this guide.
WC Only or Full Bathroom?
Do not buy more connections than you need, but also avoid a WC-only model if you later intend to connect a basin, shower or other appliance.
Replacing an Existing SANIFLO
Never assume that every model has identical inlet heights or connection positions. Check the exact replacement dimensions before changing models.
How Far Can a SANIFLO Pump?
SANIFLO pumping distance depends on the model and the complete discharge arrangement. A specification showing a maximum vertical figure and a maximum horizontal figure should not automatically be interpreted as meaning both maximum figures can be achieved at the same time.
↥ Vertical Lift
Vertical pumping requires the pump to work against gravity. The required rise should be compared with the performance information for the exact model.
→ Horizontal Run
Horizontal pipe length, pipe diameter and the overall layout all influence the final installation.
↪ Bends & Fittings
Bends and restrictions increase resistance within the discharge pipe, so pipe routing matters as well as distance.
For this reason, always use the manufacturer's performance curve and installation instructions when planning a long or demanding discharge run.
Where Can a SANIFLO Macerator Be Installed?
Loft Conversion
Useful when adding an upstairs WC or en-suite away from an easily accessible soil stack.
Basement
Pumped drainage can be useful where sanitary appliances sit below the level required for conventional gravity drainage.
Under the Stairs
Compact WC installations can sometimes be created in spaces where conventional drainage alterations would be difficult.
En-Suite
Multi-inlet models allow an additional bathroom to be created away from the property's main soil stack.
Garden Room
A suitable pumped system can help overcome more challenging drainage distances in detached spaces.
Garage Conversion
A macerator can provide another drainage option when converting part of a garage into habitable space with toilet facilities.
Replacing an Old SANIFLO Macerator
Replacing an existing SANIFLO is not simply a matter of choosing a newer unit with similar pumping performance. Check the inlet heights, WC connection, discharge position, physical dimensions and appliance connections.
Some UP models have been designed with identical pipe centres to older compatible models to simplify replacement. However, this does not mean every SANIFLO can replace every other model. Saniaccess 3, for example, has different inlet heights from certain other units.
Common SANIFLO Problems & Troubleshooting
SANIFLO Keeps Running
Continuous operation can indicate that the unit is not completing its normal cycle or that wastewater continues to enter the chamber. Switch off safely and investigate the cause according to the manufacturer's instructions.
SANIFLO Not Pumping
Check whether power is available and whether there is an obstruction or discharge issue. Do not dismantle electrical or mechanical components unless qualified to do so.
SANIFLO Blocked
Foreign objects and unsuitable materials can cause blockages. Some UP and Saniaccess models provide dedicated maintenance access to help with certain blockage situations.
Unusual Noise
A change from the unit's normal operating sound can indicate a foreign object, vibration or another issue that requires investigation.
Bad Smell
Check installation, ventilation, seals and maintenance. Several products are supplied with activated carbon filtration intended to help neutralise odours.
Unit Will Not Start
Electrical supply and installation should be checked safely. Electrical work should be carried out by an appropriately qualified person.
SANIFLO Maintenance & Care
Correct use is one of the most important factors in keeping a macerator operating reliably. A SANIFLO should remain accessible for inspection and servicing rather than being permanently enclosed.
Use Suitable Toilet Paper
Only normal toilet waste and suitable toilet paper should enter a WC macerator.
Avoid Foreign Objects
Wipes, sanitary products and other foreign objects can damage or obstruct the macerating mechanism.
Descaling
Use a product suitable for macerator systems and follow the manufacturer's maintenance instructions.
SANIFLO & Macerator Glossary
Macerator
A unit that processes toilet waste before pumping it through the discharge system.
Inlet
A connection through which wastewater enters the macerator.
Discharge
The outlet pipe through which the pump moves wastewater away from the unit.
Vertical Lift
The vertical height through which the pump is required to raise wastewater.
Horizontal Run
The horizontal distance travelled by the discharge pipe.
Non-Return Valve
A valve intended to prevent discharged wastewater flowing back towards the unit.
SANIFLO Macerator Frequently Asked Questions
Which SANIFLO do I need for just a toilet?
SANIFLO UP is specifically designed as a WC-only macerator. It has one 100 mm inlet and a 400 W motor.
Which SANIFLO can take a toilet and wash basin?
Sanitop UP is designed for a WC and wash basin and has two inlets.
Which SANIFLO is suitable for a complete bathroom?
Sanipro XR UP is specifically designed for a complete domestic bathroom and provides four inlets.
Which SANIFLO is suitable where space is limited?
Sanislim is designed with a slimline body and can be particularly useful in compact bathrooms and en-suites.
Which SANIFLO has easy maintenance access?
Several UP models provide top maintenance access. Saniaccess 3 specifically features double maintenance access.
How far can a SANIFLO pump?
It depends on the exact model and pipe configuration. Vertical lift, horizontal distance, bends and pipe diameter all influence pumping performance.
Can a SANIFLO pump vertically?
Yes, suitable models are designed to pump wastewater vertically, but the permitted height varies by model and installation.
Can a SANIFLO be installed in a basement?
A suitable macerator can be useful in basement installations where conventional gravity drainage is difficult, subject to correct installation and pumping requirements.
Can a SANIFLO be installed in a loft?
Depending on the drainage layout and model requirements, a macerator can provide a solution for a loft WC or en-suite.
Can I connect a shower to a SANIFLO?
Certain multi-inlet models accept shower wastewater. Check the exact model specification and required shower tray height before installation.
Can I connect a basin to SANIFLO UP?
SANIFLO UP is a WC-only model. If you require a WC and wash basin, Sanitop UP is designed for that application.
What size discharge pipe does a SANIFLO use?
This depends on the model. Several products in this comparison use external discharge options of 22, 28 or 32 mm.
Are SANIFLO macerators noisy?
Noise varies by model and installation. Several models covered in this guide have a stated noise level of 46 dB(A), while Sanislim is specified at 48 dB(A).
Can one SANIFLO model directly replace another?
Not necessarily. Inlet heights, pipe centres, physical dimensions and appliance connections can differ. Always compare the exact specifications before replacing a unit.
What should not go down a SANIFLO toilet?
Avoid wipes, sanitary products and foreign objects. These can obstruct or damage the macerating mechanism.
Does a SANIFLO need servicing?
The unit should remain accessible for inspection, cleaning and servicing. Follow the maintenance instructions supplied with the exact model.
Which SANIFLO is designed for more demanding applications?
Sanibest Pro uses a substantially more powerful 1100 W motor and a Pro X K2 grinder system and is designed for more demanding applications than the standard 400 W domestic models covered here.
What happens to a SANIFLO during a power cut?
A macerator relies on electrical power to operate its pump and macerating mechanism. Avoid using connected fixtures while the unit cannot operate.
Find the Right Macerator Pump for Your Bathroom
Whether you're adding a single WC, building a compact en-suite or installing a complete bathroom, compare our macerator pumps and choose a model that matches your installation requirements.
Which SANIFLO Do I Need?
Select the bathroom fixtures you need to connect and we'll show you the SANIFLO models from this guide that are designed around that type of installation.
We'll use the model information in this guide to narrow down which SANIFLO products are relevant to your installation.
SANIFLO Fixture Compatibility Guide
This quick-reference chart shows the applications established by the product information used in this guide. Always check the exact product instructions before installation.
| Model | 🚽 WC |
🚰 Basin |
🚿 Shower |
🛁 Bath |
💧 Bidet |
Typical Application |
|---|---|---|---|---|---|---|
| SANIFLO UP | ✓ | — | — | — | — | Single WC |
| Sanitop UP | ✓ | ✓ | — | — | — | WC + wash basin |
| Sanislim | ✓ | ✓ | ✓ | ✓ | — | Compact bathroom |
| Sanipro XR UP | ✓ | ✓ | ✓ | ✓ | ✓ | Complete domestic bathroom |
| Saniaccess 3 | ✓ | ✓ | ✓ | — | ✓ | WC + basin + shower + bidet |
| Sanibest Pro | ✓ | ✓ | ✓ | ✓ | ✓ | More demanding applications |
SANIFLO UP vs Sanitop UP – What's the Difference?
These two models are closely related but designed for different bathroom configurations. The main difference is the number of fixtures you need to connect.
SANIFLO UP
Sanitop UP
Replacing an Existing SANIFLO Macerator
If your existing SANIFLO needs replacing, don't choose the new unit based only on its motor power or pumping distance. Physical connection positions can be just as important.
Check the product label and establish the exact SANIFLO model currently installed.
Different SANIFLO models can have different appliance inlet positions and heights.
Some UP models have been designed with compatible pipe centres to simplify replacement of certain older models.
Make sure the replacement has the correct number and type of inlets for the WC and any connected appliances.
For example, the Saniaccess 3 documentation warns that it is not a direct replacement for every other SANIFLO because inlet heights can differ.
SANIFLO Manuals, Installation & Technical Information
Before installing or replacing a macerator, check the technical information for the exact model. Pipe dimensions, appliance inlet heights, shower tray requirements and pumping performance can vary.
Learn about discharge pipework, appliance connections and important installation considerations.
View Installation Guide → Compare SANIFLO ModelsCompare motor power, inlets, noise levels, pumping heights and typical applications.
View Comparison → SANIFLO TroubleshootingFind information about common symptoms including blockages, unusual noise and units that keep running.
Troubleshooting Help →
Add a toilet
anywhere in your home
Extra toilets can make a big difference. Whether you need one upstairs, in the basement, or under the stairs, SFA Saniflo solutions offer a simple and cost-effective way to install toilets almost anywhere.
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Install a bathroom
wherever you want
Renovate a bathroom with added functionality, or create a completely new one upstairs or in the basement – everything is possible with SFA Saniflo.
Enjoy greater comfort and functionality without major renovations!
Create a kitchen or
laundry room
wherever you want
Upgrade or move a kitchen? Add a laundry or utility room? Everything is possible with SFA Saniflo solutions.