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Old 22-01-2011, 10:02 AM   #1995
tom_kkh
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Join Date: Feb 2008
Posts: 8,702
I agree. what my company practice is the upgrade is for a thicker insulation, and not the class difference. From 3/8 to 1/2 inch. As for drainage pipe, we are using the standard 16mm one. Insulation we use Armaflex standard, and trunking uses litaflex.

But bro, i dont really know how much is 1/3 inch. haha. drainage pipe we measure it by mm. haha
1/3 if not wrong is 16mm lor.

16mm very fast will choke already, than time to waste $ for servicing.

better ask to install 32mm instead.
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