Just got a great little mini-cylinder vacuum cleaner. 800W so should be fine for the caravan. Only problem I had was finding replacement bags on the internet. Anyway, by chance I took a bag to Tescos and their own brand 484 TC02 (for Tesco's own VC206/207) fit the cleaner.
They need to be inserted sideways and are a snug fit but they work.
No one has asked this yet, but no doubt they will. Hope this solves the problem.
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