Quote:
Originally Posted by buffalobillpatrick
3/4" pex has 1" outside diameter
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3/4" pex has 0,875" outside diameter
Source:
Properties of PEX tubing
Quote:
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So exposed area of tank is about the same area as 255' of 3/4" pex.
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So exposed area of tank is about the same area as 291' of 3/4" pex.
I think we were both wrong in our original calculations. The real answer is a little more than you thought and a lot less than I thought. I should learn to check my mental arithmetic!