32mm condensate p trap

[ABCDEFGH1]

I am installing a condensing boiler. This requires a soakaway to take the 22mm outflow. The Heating & Hot Water Council have a very helpful document at https://www.hhic.org.uk/
This says there should be a 32mm p trap and to output to a soakaway in limestone chippings.
I have bought a Plumbright 456944 soakaway but cannot find a 32mm p-trap standpipe only the 40mm one which is used for washing machines of type in pic.
I could buy a telescopic p-trap but this needs to be a minimum of 450mm in height.
Otherwise I could join a 32mm pipe to a standard basin inlet p-trap if I knew what fitting I would need?
Any suggestions?

 

[Stuckinarut]

I’ve just skim read the document, where does it mention a p trap for a soakaway?

 

[Madrab]

If you are running the condensate then the boiler's MI will give instructions on that, if not then if running to an external soakaway then as long as the boiler has a condi trap then no additional trap or air break is required. You do need to increase the condi pipe size before it it heads through the wall to 32mm. Soakaway needs to be within a certain distance from the wall etc.

 

[DP]

How are you going to register the boiler and carry out FGA readings as required by the Benchmark logbook. Excuse me if this post seems to be a diy effort.

 

[ABCDEFGH1]

On Fig 1 as there is no trap within boiler.
I could use a McDonald OBT1-30 which has 32mm input and output

 

[Madrab]

On Fig 1 as there is no trap within boiler.

What boiler - make and model - It would be a rare condensing boiler indeed that didn't have a condi trap.

 

[JohnD]

Just to check, is this boiler in or near a room that contains a kitchen sink, or a washing machine, or anything else plumbed to a waste pipe? Is there a gutter downpipe or drain nearby?