Question about Plumbing
The internal diameter is notional and if the two lengths you have used came from different production batches then their average internal diameter along the length of one half may be different to the other. The fact that there is such large ratio between the length of the tube and the internal diameter only makes matters worse.
You need ideally to source a single 10m length and to select a larger internal diameter to maximise accuracy: 10mm i/d will be better but if you can cope with the extra volume of liquid then 15mm or even 20mm will be much more accurate.
Posted on Jul 28, 2010
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