Saniflow compact installation

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Evening,
I'm installing a Saniflow Compact (stack issues) and have a headache with the discharge waste pipe.
I need to use 32mm solvent weld for this but the outer diameter (OD) is 36mm and the toilet accepts 32mm OD.
I thought about a 32mm-32mm compression to convert but it makes me nervous for obvious reasons.
Any ideas?
Cheers.
 
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Why not run it all in 32 mm straight to the stack if your worried about a compression fitting ,which would probably be fine anyway by the way.
 
Thanks.
I am but the solvent weld 32mm is actually 36mm outer diameter and wont fit into the Saniflow outlet which needs 32mm outer diameter.
 
Short piece of 32 into appliance with a 32 mm compression fitting coupler to the ABS ( 36 mm tube)
 
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I don't really want to be using compression on a waste pipe that handles human slurry under pressure !!!
 
I don't really want to be using compression on a waste pipe that handles human slurry under pressure !!!
And quiet rightly so! 32mm solvent weld will be ok. (y)

Top tip: The rubber connection piece between discharge elbow and 32mm outlet pipe has 2 jubilee clips, a) Use a 7mm socket and 1/4" ratchet to go tighter than you would with a screwdriver but don`t go all gorilla with it and b) the jubilee clips must be perfectly square.
It is a stupid design and even my heart is in my mouth on first test after many years of working on them.
Good luck ;)
 
Evening,
I'm installing a Saniflow Compact (stack issues) and have a headache with the discharge waste pipe.
I need to use 32mm solvent weld for this but the outer diameter (OD) is 36mm and the toilet accepts 32mm OD.
I thought about a 32mm-32mm compression to convert but it makes me nervous for obvious reasons.
Any ideas?
Cheers.
Have you checked the water pressure in the room, most important to do so, say`s so in the installation guide.
 
And quiet rightly so! 32mm solvent weld will be ok. (y)

Top tip: The rubber connection piece between discharge elbow and 32mm outlet pipe has 2 jubilee clips, a) Use a 7mm socket and 1/4" ratchet to go tighter than you would with a screwdriver but don`t go all gorilla with it and b) the jubilee clips must be perfectly square.
It is a stupid design and even my heart is in my mouth on first test after many years of working on them.
Good luck ;)

Thanks I'll do that.
Out of the box the big rubber pipe from the toilet was flapping about loose so it wasn't a great first impression...
 
Have you checked the water pressure in the room, most important to do so, say`s so in the installation guide.

No I couldn't as the plumbing has only recently been run upstairs and I'm on a tight schedule.
I put in a new mains supply pipe which increased the flow in the kitchen to ~17 litres/min and the pressure to ~2.2 bar (measured with a cheap Screwfix meter on a washing machine fitting).
It says 1.7 bar minimum dynamic pressure in the instructions - are my numbers ballpark in your experience?
 
Thanks I'll do that.
Out of the box the big rubber pipe from the toilet was flapping about loose so it wasn't a great first impression...
Err, what big rubber pipe? Any chance of a photo please.
 
No I couldn't as the plumbing has only recently been run upstairs and I'm on a tight schedule.
I put in a new mains supply pipe which increased the flow in the kitchen to ~17 litres/min and the pressure to ~2.2 bar (measured with a cheap Screwfix meter on a washing machine fitting).
It says 1.7 bar minimum dynamic pressure in the instructions - are my numbers ballpark in your experience?
I`ve seen 6bar static reduce to 0.6 dynamic. Best if you use that washing machine fitting add an isolating lever valve so you can control on/off, then a Tee piece with the pressure gauge at top and a length of hose going out of the window somewhere to get an accurate reading.
 
I`ve seen 6bar static reduce to 0.6 dynamic. Best if you use that washing machine fitting add an isolating lever valve so you can control on/off, then a Tee piece with the pressure gauge at top and a length of hose going out of the window somewhere to get an accurate reading.

I did a test where I fitted the pressure gauge to the washing machine fitting and turned on a nearby tap. It reduced to ~1.8 bar ish.
 

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