Question about Saniflo SaniPlus-Round SaniPlus Macerator Toilet with Round Bowl

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My up flush toilet was installed and the guy who installed it left the little hole on top open he said it needed the intake of air. But when the system pumps, dirty water splashes out and the smell is unberable. Could someone help me out.

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No!!! seal the hole with silicone caulk... it will still work just fine!!!


Posted on Aug 05, 2010


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1 Answer

When I flush my saniplus toilet water seeps out of the small port hole on back left corner when I plug it the pump does short fast flushing noise as to the longer ones when it's not plugged ??

That hole is to prevent a prime issue with the pump, It allows the pump to break any air locks that may be present that prevent priming.

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Half flush does a full flush

It's not nessesarily a half flush just as little water as is possible for that toilet. The full flush has just a little more. It may be hard to tell the difference.

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The bowl doesn't flush from the front part

If a new toilet, the front holes may not have been cast correctly. If an older toilet it is likely mineral buildup has blocked those holes. A mittor and a coat hanger shoudl suffice to open the holes up, use the mirror to see under the rim lip and use the coat hanger to open the holes- you may need to use a larger clip instead depending on the size of the holes.

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Flapper valve closes too quickly

Fill the breather hole (1/8" hole) inside the flapper.This is designed to let air out so the flapper will sink. Now it floats longer letting in more water. 25%percent more in my case.

Apr 22, 2012 | Home

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Odor when water turned on

Most Saniflo products comes with a 1/2" opening on top of the pump casing, which the opening is for European installations only (this is also used in Europe) in the US the 1/2" opening must be kept plugged, if left open, odor will come out of the hole there. But make sure that you cap the 1/2" opening and vent the unit using the 1 1/2" vent connection on top. Make sure is vented to the open air, as air must flow in and out at all times.

Dec 06, 2011 | Saniflo SaniPlus-Round SaniPlus Macerator...

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Vent on top is blowing bubbles and toilet pan is filling up with effluent

If you have a Saniplus model then the vent connection is on the top right side of the pump casing if you are facing the toilet with pump sitting behind. The vent pipe needs to be minimum 1 1/2" and must be vented to the open air so air can flow in and out at all times. To the left side of the vent connection is the discharge pipe which should be a 3/4" or 1" discharge pipe. You can try disconnecting the vent pipe and run it with the vent pipe open, also you can disconnect the discharge pipe and put a bucket at the end of the discharge elbow and flush the toilet into the bucket, it will free flow into the bucket and there are no restrictions. That way you can tell if the problem is the pump or the installation set up.

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1 Answer

I have an American Standard Cadet (one peice). When I flush, all the liquid in the bowl is discarded, but some of the hard matter remains, including tissue paper.

Check to see if every little hole under the rim is open and not clogged.
The best tool I have found for this job is a hex key, or allen wrench that
is bent at a 90 degree angle. I don't know if your toilet has a hole or siphon
jet way down at the bottom of the bowl, but I have seen these plug up too.
Use an even bigger allen wrench of that, scrape around inside the hole.
Also, I would install a new flapper. Get the one made by Korky,, they are
a universal flapper, and they allow more water to be used per flush.

I never could understand a water saving toilet that takes two flushes to
work properly, we sure aren't saving any water that way. I think we should
have left the toilets alone, and go after the golf courses. A golf course uses
more water than you can possibly imagine to keep the grass green in a desert.

Another way to modify a toilet is to extend the overflow tube up with a coupling.
Just don't go any higher than the handle !!! Then set the float valve higher, this
will give you a more powerful flush.

I made a good living modifying water saving toilets that don't work properly
right out of the box !

Good Luck and God Bless

Oct 20, 2010 | American Standard 2004.014.178 Champion 4...

1 Answer

Bad smell fro macerator when toilet flushed after being left overnight

Typically on macerating or grinder pumps there is a small 1/2" breather hole on top of the lid, about the size of a dime or nickel. That breather hole must be kept plugged or seal cap. If left open, odor will escape through there. Make sure the pump is vented using an 1 1/2" vent pipe which must be vented to the open air so air can flow in and out of the vent pipe at all times. Also you might want to check for loose connection or waste water leaking from the pump, toilet or any of the connections.

May 21, 2010 | Saniflo & Saniplus& Macerator Pump

1 Answer

When toilet is flushed the pump will continue to pump.

The air breather hole must be kept plugged in the US as odors will emmit through there is left open. I was told that it was only used for European installations. In the US the breather hole mut be kept plugged or seal capped. You must vent the unit using an 1 1/2" vent pipe and must be vented to the open air. As per plbg. codes it should be attached to the main vent stack or all the way through the roof.

Mar 31, 2010 | Saniflo & Saniplus& Macerator Pump

2 Answers

Regal Sloan Valve operates only intermittently

The diaphram has a little metal by-pass or air-flow hole thats probally stopped up or the vacumn breaker is bad.

Jun 21, 2009 | Home

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