Big bottles or Containers that can hold water (Little Chalfont HP8)

Hi. If anyone local -ish to little chalfont or chesham has any large containers that they don’t need I’d happily collect and repurpose them please? I’m trying a wick watering system in my greenhouse/ garden and need containers to put water in. I don’t need lids and I can wash them out (although nothing too oily or hard to rinse like paint please) I’m thinking of:
5L washing up liquid bottles
2L pop bottles
Glass demijohns
Buckets etc
Anything that holds water really..
Many thanks

       
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