Sorry I don't but bulk tabs seem cheap e.g 14,000 for £250 from https://www.hygiene4less.co.uk/product/aquatab-167-bulk/

Given Brexit it may be best to try and source in Europe

That’s perfect thanks

This is the response from Poland charity place:
Hey there! Yes! I’ve done a bunch donated between yesterday and today but as of tomorrow there may not be any drinking water in Nikolaev so I’m sending a ton that way and I know it is also needed in Dnipro and Kharkiv so I’ll probably be out of supply.

Is tincture of Iodine still acceptable for doing this? I seem to remember it being as or more effective than the tablets and it's cheaper and smaller.
2 drops per litre of water so small amounts needed to kill the bugs.
May not be appropriate but is that another option?

To treat water you also need filtration. If you don't the bugs in the particulate matter survive sterilisation. Even a coffee filter improves matters. Do they have anything to filter their water? And if not ask what they need.

Educator-
Thanks I will

I think the water is mostly undrinkable tap water. The troops will need a filter if they are using streams etc though.
I’ve asked for a quote for a full pallet, enough for 4.5 million litres.
I might be able to bring together a few different sources.
Might be waaaay off.