Hi guys - so i have been looking into a 6.36kg CO2 tank for mig welding. I know an arg/co2 mix is considered better but the cost is just not an option for me. I have a Clarke MIG 130EN, im not sure of the regulator fitting size but its the one that fit the small disposable gas canisters. My question - what would i need to do in order to adapt this to fit a big co2 tank - the same ones that are used in pubs for example? I have attached a picture of both tanks. The small one is the one i currently have. Thank you in advance