Question about Saniflo & Saniplus& Macerator Pump

1 Answer

Loud grinding noise from unit when flushed like

Loud grinding noise from saniflo sani-slim unit when flushed. the unit appears to be struggling to work with just a clean flush/no waste producing the loud grinding noise whilst at the same time the unit vibrates a lot?

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.


    An expert whose answer got voted for 20 times.

  • Expert
  • 117 Answers

Take the pump out and haul it outside and spray it off and check in the bottom of the pump to make sure there isn't anything stuck in there. then shop vac the bottom of the tank out to make sure there isn't anything funky in there that would get clogged in the pump. sometimes the out let line gets clogged as well you can buy a drain king ( it's a rubber deal that hooks on the end of a hose and when you turn water on it swells up and sprays water out) then stick it in the outlet pipe and let her rip and see if it lets the water through.

Posted on Jul 29, 2009

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

My saniflo does not flush properly always leaves the toilet paper behind

Not enough water (Sani`s don`t suck it in)
Recycled dense paper
Old Sani needs a service

One or all of the above should cure it.

May 14, 2015 | Saniflo & Saniplus& Macerator Pump

1 Answer

We have a saniflo. We were out, and our babysitter (who isn't familiar with saniflos) was in the bathroom and suddenly she said water was flooding out of the toilet - she said she had heard a loud noise...

If the apple core was right at the pump intake at the time the pump kicked on it very well may have been the problem. The pumps in those units are not the strongest in the world anyway. They are not made to grind up anything that has any bulk to it.

So the answer to the question in my opinion is yes. But you well want to keep a close eye on it for a while.

Mar 11, 2011 | Saniflo SaniPlus-Round SaniPlus Macerator...

1 Answer

Hi, We resently had our water supply freeze up,


Stop using it. Sounds like the "Impeller" is going bad or broken. There are replacement parts or you may buy another ejection tank.

Dec 23, 2010 | Saniflo Sanibest Grinder Pump Only 013

1 Answer

Sanipump toilet had a wipe put down it. i have taken the unit off the back and opened it but it wasn't blocked - put hand in and had good feel around! still making awful grinding noise when flushed. any...

it may have something stuck in the blade (on top of motor) or the impeller (at bottom of motor) to get to the impeller the motor complete will have to be removed out of the pump casing. Also check the discharge pipe for any obstructions. Also there is a pump cover plate located at the bottom of the motor and it will cause the unit to make a loud grinding noise if anything is stuck in there.

Dec 22, 2010 | Saniflo 002/005/007 Saniplus Toilet with...

1 Answer


Always an issue, guessing it is on a tiled floor? or up against a tiled wall?

I put some thin foam / Bubble wrap underneath and behind mine to dampen the vibrations. It also helps if you box the unit in and use foam to quieten the noise (on top and around the unit). Depending upon how long you have had it, it may also need a clean out or possibly even the motor bearings are getting a bit worn, creating some noise with the excess movement.

Good Luck

Jan 07, 2010 | Saniflo SaniPlus-Elongated SaniPlus...

1 Answer

Hi there, i have got a problem with my turboflush; it seems that it struggle alot after flushing, even with a clean flush. it does make a grinding noise as well. it goes on for quite a while whereas before...

It really sounds like something that shouldn't be there is in the macerator/ejector. If you are not familiar with the internal workings, call the plumber who installed it. Best case scenario, it is just something that needs to be removed. Worst case scenario, the macerator/ejector and motor bearings are shot and need to be replaced.

Dec 21, 2009 | Saniflo & Saniplus& Macerator Pump

2 Answers

Grinding motor will not stop

my son put a wet wipe down the toilet, now it makes a loud grinding noise when flushed

Oct 07, 2009 | Saniflo SaniPlus-Round SaniPlus Macerator...

1 Answer


float switch of level control is defective. replace same with new part

Jun 05, 2009 | Saniflo SaniPlus-Round SaniPlus Macerator...

1 Answer

System not flushing and motor cut out.

Motor may have been jammed and notw burned out.

May 29, 2009 | Saniflo SaniPlus-Round SaniPlus Macerator...

1 Answer

Our Saniflo - Saniplus works fine and efficiently when we flush the toilet, if we use the shower or bath,when emptying the water the flow is not as strong/as much pressure like a toilet flush & the...

Sounds like a restriction in the outlet pipe, the 2 galls from a flush are OK but the bath or shower is more, especiallly if you have flushed before you shower, try drain unblocking chemicals or flushing the outlet pipe with mains water from a hose

Mar 09, 2009 | Saniflo & Saniplus& Macerator Pump

Not finding what you are looking for?
Saniflo & Saniplus& Macerator Pump  Logo

2,891 people viewed this question

Ask a Question

Usually answered in minutes!

Top Saniflo Home Experts

Brad Brown

Level 3 Expert

15557 Answers


Level 3 Expert

2464 Answers

Donni Steen

Level 3 Expert

659 Answers

Are you a Saniflo Home Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides