need some dry washer help

[Tank69]

I have an older Keene dry washer ( looks like the one pictured but convereted to electric )I bought it used an went to use it the other day an noticed this poor thing really needs a new puffer bag .

Does Keene sell replacement bags ?
Is there a place that sells bags after market ?
is there a manual on how to make your own an what material to use?


I'm ready to start moving some dirt

HH Tank