Are Macerating Toilets Noisy? (Make It Quite)

Are Macerating Toilets NoisyMacerator toilets are renowned for their awesome and compact deliverability. It is not like normal toilets. This is a vestige of durability and hard-wearing compactness. But some facts create immense vex to the homeowner, and bad noise is one of them. They have a bad reputation for sounding so errantly. If the macerator toilet is creating an annoying sound, something fishy might be going into the system. 

There are so many tricks and strategies for making a Macerator toilet noise-proof. Among them, one of the best things is to eradicate build-up around the blades. The vibration-absorbing rubber mat also works really well to absorb all the noise. Unlike these methods, this article will cover almost everything on the facts to make the Macerator toilet quieter and will provide necessary tips on fixing them. The maceration process also emanates a bad odor that may also be discussed. The rear discharge toilet is mainly responsible for all these issues.     

Possible Causes:

  • Motor malfunction.
  • Worn out or damaged blades.
  • Clogged or obstructed pump.
  • Aged or faulty seals.
  • Overfilled waste tank.
  • Air trapped in the system.
  • Incorrect installation or setup.
  • Defective or malfunctioning check valve.
  • Hard or foreign objects in the macerating chamber.
  • Water flow issues, either too much or too little.
  • Damaged or kinked discharge pipes.
  • Vibrations against walls or floors due to loose mounting.
  • Degraded or misaligned pump bearings.
  • Inadequate or faulty electrical connections.
  • Poor quality or non-standard replacement parts.
  • Deteriorated rubber or plastic components.

Possible Solution:

  • Install sound insulation: Place acoustic panels or insulation around the macerator unit.
  • Use a noise-reducing cover: Look for covers specifically designed to muffle the sound of macerating toilets.
  • Maintain regularly: Keep the macerator blades sharp and the system clean to prevent noise from inefficiency.
  • Place the macerator unit behind a wall: Create a small partition or false wall to enclose the unit.
  • Choose a quieter model: Invest in a high-quality macerating toilet known for quieter operation.
  • Isolate with vibration mounts: Install the unit on vibration-absorbing mounts to reduce noise transmission.
  • Keep the bathroom door closed: Simple yet effective, especially if the noise is intermittent.
  • Add a pre-tank: Some systems allow for a pre-tank that can dampen the sound before it reaches the macerator.
  • Adjust the cutting blades: If possible, ensure the blades are adjusted properly for quiet operation.
  • Schedule usage during the day: Plan to use the toilet when the noise will be less disruptive, if the noise can’t be significantly reduced.

Is noise a common issue in the Macerator toilets?

The macerator toilets have an aggressive pumping system and a blending mechanism that emanates a lot of noise while performing. A macerator generates disturbing noise. This process is very noisy. Normal gravity toilets do not sound that much while waste is going down the drain. But in the case of the macerating, the pumps make so much noise while grinding all the waste. The amount of noise can be slashed by taking some steps. 

A macerator toilet is noisy as the macerator blades operate. It produces more than 50 decibels when in action. However, the latest models have less sound, between 40 and 45 decibels. When the blades are in a good mood, it generates horrible sounds. The noise output ranges may exceed the human tolerance level. Macerator toilets are so loud, and it sounds like something is shaking and shattering apart. Bad sounds emanate if There are blockages in the blades. If some faulty parts generate bad sounds, they might be checked. 

How to minimize bad noise from a Macerating toilet?

Macerating toilets are too noisy. The toilet systems produce so rattling noises that they can cause several hearing diseases also. The action grinder and the toilet pump make the entire process crack. Spoofing all the liberty pumps into the activation mode relies on 35 and 45 DB. Let’s see some methods on How to minimize bad noise from a Macerating toilet.

Install Soundproofing Around the Macerator

Installing a soundproofing shield in between the macerator and the wall floor can do the work. Macerator’s normal humming noise is all good, but we cannot tolerate it if it becomes loud. You can also apply a spray product and foam soundproofing under the floor. 

Install a Rubber Mat

The macerator produces bad vibrations when it is in operation. The normal humming noise can be ignored, but if it becomes so much pertinent, then it is a problem. A soundproofing rubber mat must be attached to the unit. They are reliable and known for good deeds. The development of faulty parts can be a decent step.

Remove Build-Up Around the Blades

The most regular reason for macerators making loud noises is a build-up of bad objects around the blades. Thu can easily handle solid waste, but it becomes clogged over time. A substantial build-up around the edges can emanate this bad sound. You can Call a technician to check the elements. Apply a random descaling solution to eradicate all the waste from the blade. 

Regular problems with the Macerator toilets


The Macerator toilets are heavily dependent on the supply of electricity. If somehow the connection of the electricity gets isolated, then it will stop working. Power cuts are one of the most challenging things for the Macerator toilets. If you are in a province with frequent power outages, then you may face some bad issues with this one. The upflush toilets that must be used are battery-powered ones in this area. 

Less benefit table 

The most common scenario for almost every home is that they already have a sewage system with an alternative toilet system. If you suddenly introduce a new macerator toilet, that will hamper the overall ambiance of the whole residential area. There is always a separate drainage system for all the homes. So a sudden inclusion of a macerator toilet may be counted as an intruder. So, in this case, the addition of a macerator toilet may be proven damaging for the homeowner.

Get clogged more often

Macerating toilets are very much prone to be clogged. The rate of getting clogged is larger than a standard toilet. The design and model of working are like gathering so many clogs in the system. If something is not going well, it will clog the whole system. When the blades do not work properly, it gets stuck by the waste. This increases the chances of severe clogging. The upflush toilets cause clogs much more than a conventional one. The bad message is happening in the Latest module combined with the mix-up of the bad clogs. The macerating ones have to go through special procedures, and sometimes it’s so hectic when unclogging macerating toilets becomes a bad headache. So you must be vigilant when flushing down the upflush toilet. 

Flushing complications 

The Macerating toilets have tanks that are very much prone to falling apart. If you do not flush it regularly, it will be damaged, so the only thing is to address them in a conventional manner. So a backchannel resistance mat is very deadly for this kind of toilet.

Bad smells May come 

We know that the Macerating toilets use a minimum level of water. So as a consequence, it is really evident that it will stink for the lack of water. The gaps between the Saniflo toilet and tank make the process of stinking rapid. So you should always check the toilet system to keep it fresh.  

Violation of local building codes

Some Macerating toilets are not legal as per authority. They sometimes contradict the local building codes. So these toilets may not be allowed in some areas. It would be best if you took NOC from the authority before installing one in your home. The building codes do not consider it a good sanitation system in many regions. 

Which macerating toilet models rarely make any noise?

#01 Saniaccess Macerator Toilet

The saniaccess 2 is a great macerating toilet that is free from emanating bad sounds. Its 1/2 HP pump system makes the entire system rapidly fast. It needs to be installed 15 feet below the sewer line. This model is best known for dismantling solid human waste and toilet paper. The best and most inclusive part is that it is free from noise. 

Why is it ahead of its counterparts?

  • The catchphrase for this toilet is it is less noisy. The Noise level is far less than 53 dB. The rate of Discharge is more or less 15 ft. 
  • The intuition of the Shut-off head is more than 17 GPM with a 0.5 HP thermally protected system. The Saniaccess 2 is incorporated with the massive toilet bowl and toilet tank combo.      
  • Saniaccess 2 macerating toilet has a decent pump housing with progressive motor power. The drainage system has been with the large discharge gray water sink system. Saniaccess 2 fits well into the 1-1/2″ inlet pump housing mechanism. 
  • The inlet side connection has a far-sighted discharge elbow within the upper portion of the unit. The discharge installation has been equipped with a non-return valve making the discharge elbow rock solid. 
  • There is always a great connection to a vent system that emits all the bad odor out of the bathroom. The massive two-way air vent works really nicely in keeping the odor fresh.
  • The use of mechanical vents can also be an iconic disclaimer to the system. 

#02 Venus Silent macerating toilet 

The best part of this toilet system is that it is totally silent. Silent Venous Systems are built of major construction. The design signifies the powerful macerating units that are so awesome.

Why should you choose this?

Here are some of the massive attributes making it the most powerful macerating system of all time. 

  • It is powered with a 10v-120v/60hz backup system. The waste’s massive 600W and 34 GPM flow rate makes it a giant in this section. The Non-Clog Blades are made of Heavy-duty Stainless Steel. Each side is occupied with the plastic casing of 260 ft vertical propulsion.
  • The toilet Bowl and Tank are made of high-quality materials. The rear discharge toilet mechanism emanates Low-noise than ever. The round bowl’s sleek design makes the passing of waste decent. The dual flush push-button actuator is something to be remembered. 
  • The small spaces over the 4″ Diameter of pipe make the passing process simple. Diameter of the bell housing is 5″, which creates less noise while passing the waste. 


The rigorous Macerating toilets have an everyday vibe that will produce bad noise while operating. They are considered an eco-friendly option at home. They save a lot of water. It requires less maintenance, and the bowl remains at a premium level. It can also produce some issues like leaking and running, but the most intolerable is the bad noise. Making unusual noises is a prime characteristic of the Macerating toilets. Gurgling sounds or rattling and spawning may happen if the blade gathers so many minerals and foreign objects. Seek help from professional plumbers if this happens quite regularly. Thus, following the overall guidelines, you will be fighting against the sounds of a Macerating toilet. 

We are really lucky to have a hard-working, multi-skilled plumber on our team. Collin D. Gallegos, a professional plumber who has worked with us since 2012, is an expert in vent, septic, and drainage systems. He is a Certified Master Plumber and has worked on various commercial plumbing projects. He usually helps our readers resolve plumbing and pipe-related issues with a proper DIY troubleshooting and repair guide.

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