Duncan Delta help wanted

[kkeegan]

I have just bought a mid-70's Duncan Delta and I wondered if it was possible to get the absorbent discs from anywhere or what people use as a replacement.

 

[mawnansmiff]

An old post I know but here's my tuppence worth. On my Duncan Delta (and indeed on all of my metal pipes) I simply cut about 1 inch from a clean pipe cleaner, bend it into a circle and insert that under the bowl. That will cure all gurgle every time.
Regards,
Jay.