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Old Nov 29, 2012, 06:24 AM
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Man from Atlantis
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London
Joined Nov 2003
914 Posts
To be honest, I'd be very surprised indeed if the the plastic expands to the extent that you get leaks.

Generally these sort of leaks are due to poor tolerancing of the endcaps. Mould shrinkage perhaps?

I tend to favour machined endcaps, as they are made to fit.

If or when you get your little lathe, Tom, machine up a little two part aluminium bayonet ring, you will never experience a leak again, at least not through that part anyway!
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