Saniflo Saniplus Up - bits of waste flowing back into the toilet after a few hours.

[gbyng]

I have a Saniflo Saniplus Up (about 5 years old).
Now.... after a particularly big solid poo last weekend it has been returning bits of 'solids' back into the pan.
The toilet flushes properly and (makes the usual sounds) and looks clean, but after a few hours I'm seeing bits in the bottom of the water.
I've tried giving it a good soak overnight with the descaler / bleach macerator fluid but still getting the issue.
I'm thinking it's the non-return valve? Can't remember how this comes out though - Does it just pull? Or unscrew? Trying to avoid the nightmare of taking the whole lid off for obvious reasons

 

[dilalio]

Move house

There's no other way round it, you'll have to open it up, jet wash it out and check the discharge pipe.

May be a blockage at the outlet to the soil stack, waste!

How's it piped up?
What's the discharge route?

Photos?

 

[just pumps]

A few buckets of hot water thrown down the pan should sort it out. The NRV is in the elbow which pulls out.

 

[gbyng]

A few buckets of hot water thrown down the pan should sort it out. The NRV is in the elbow which pulls out.

Cheers mate - I've run a few sinkfuls of warm water down but I'll go with the buckets at the weekend.
If that fails I'll try pulling out the NRV.

 

[just pumps]

Cheers mate - I've run a few sinkfuls of warm water down but I'll go with the buckets at the weekend.
If that fails I'll try pulling out the NRV.

Just to be clear, the elbow/NRV pull out from the tank and the NRV is released from the elbow with a small twist to release the locating lugs

 

[gbyng]

Just to be clear, the elbow/NRV pull out from the tank and the NRV is released from the elbow with a small twist to release the locating lugs

Cheers mate - so can I pull the elbow and NRV out together? Is it just a pushfit?.... then a small twist to detach the NRV from the elbow?

 

[polesapart]

Move house

Is the correct answer!

 

[just pumps]

Cheers mate - so can I pull the elbow and NRV out together? Is it just a pushfit?.... then a small twist to detach the NRV from the elbow?

It should be held in place by a jubilee clip so a large flat blade screwdriverv or 7mm socket to undo it.

 

[ree]

OP,
Just saying:
I know that expense & inconvenience can loom large when thinking about getting a Saniflow installed or replaced by a conventional WC but my early plumbing experiences attempting to repair Saniflows put me off ever again having anything to do with them.

If you are going to DIY a repair then make preparations eg plastic sheeting, cloths and gloves etc. & remove the 5amp fuse.