I went to an agricultural sale yesterday and there was a stall selling welding gear, they had some bottle's of co2 argon mix, 9 litre bottle's for £50 and then £36 for a refill plus vat, is this reasonable or expensive
That's not bad - I've just switched from BOC to a rent-free cylinder, paid £52 deposit (£40 refundable on return) and £36 per refill, but that's including VAT. That was from Smithsons in Kidsgrove, for a ten litre bottle.