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Old 20-11-2014, 02:11 PM   #4994
MightyPigeon
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Join Date: Apr 2004
Posts: 452
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.

Thanks for your advice.

How do I amateurly check for pipes to be in decent/good condition? Thankfully its external trunking so I can access it myself.
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