Tom
You would not necessarily need to have a repair shop with a template. The usual technique for us to copy a set of tubes is "make from scratch" a set of tubes is to make our own template by cutting the old ones, then use these as a template.
The bad news is that - from our recent experience - there is little difference between the costs of a new set of tubes brought from the Zodiac factory and making a new set of tubes from scratch. The new materials costs are what is very expensive, which is why any new tubes are not cheap
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