Question about Saniflo & Saniplus& Macerator Pump

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Smell coming from tolit area - Saniflo & Saniplus& Macerator Pump

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1) If you have ordinary tank-and-bowl toilet, add a tank bowl freshener in the tank.
2) Check bottom of toilet to see if there is signs of leakage. Reset toilet on new wax ring.
3) Add a comment with photo of your problem so I can see it:

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Posted on Mar 16, 2011

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The problem with the smell is that the macerator air switch manufactured by Lafoo has a diaphragm in it that tends to sag with time. The switch is mounted vertically instead of horizontally on the circuit board, which is the preferred method of operation. Huge mistake by Saniflo. This prevents the macerator from switching on properly and the unit tends to fill up to high causing the smell. The Lafoo air switch is 5.5mbar and actually has a built in adjustment dial that can be seen when one removes it from the circuit board. The solution (besides putting in a 3.5mbar Lafoo switch) is to unsolder the original switch, solder two 2" pigtails onto the switch and soldier the pigtails back onto the board. This will give you enough room to have the switch hang horizontally and allow gravity to help assist in triggering the diaphragm in the switch. Also, you will also now have the benefit of being able to adjust the sensitivity of the switch if need be depending on the atmospheric pressure where you live. The pressure side (air tube) should be on the top and not the bottom. After you make this modification, your Saniflow will work better than new and the smells will immediately dissapear. The switch will now trigger every time your flush the toilet or when the water level in the unit reaches the proper height. An enzyme type cleaner (used in RV's) will help descale any sludge in the unit but the main issue is with the air switch and how it is mounted. If you need pics of how the unit should look after it is modified, e-mail me at My wife now has her own bathroom back!

Posted on Aug 22, 2011


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