Help please 👍 filament build up

Ive been reading and reading and not really seen anyone come up with a definite solution.
Everytime i multi colour print i have to watch it like a hawk as every now and then when its purging the poop chute blocks up and im also getting the poop flying onto the print plate… Ive had alot of failed prints due to this issue.
Ive seen a few people sugguestion different kinds of extenders etc.
Anyone got any pointers for me please and what worked for them. Thank you

Sorry i forgot to mention im using p1s and standard PLA

Try something like this.

Note they recommend not using PLA or it may weld to the filament being purged.

I use this stuff without any mods.

I am printing right now with 127 filament changes. As of layer 106 with the last to be at layer 130. There has been so far no mistakes.

The only mistakes are when the nozzle cleaner wears off the paint. On the X1C I have to reapply every two weeks. On my Qidi hardly ever but filament never sticks to it.

This is with ABS/ASA.

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