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Old 20-11-2014, 11:43 AM   #4993
terumo
Senior Member
 
Join Date: Oct 2004
Posts: 1,899
To MightyPigeon,

12k using 18k pipes is ok.
But not 18k using 12k piping.
Can be oversized but not undersized.
This is assuming pipes in good condition.
terumo is offline