Sir HC – Member
CO2 can cause the sealant to ‘ball up’ and harden, best to use compressed air (compressor, flashcharger, airshot, etc)
CO2 to seat, deflate, add sealant, then pump with track pump.
You can buy a hell of a lot of cartridges for the price of a compressor (or even an Airshot).
co2cartridges.co.uk for the carts. Inflator head I’m using is off one of those Genuine Innovations Ultraflate. Works fine with valve core in or out. Has a nice lock so you can inflate a bit and lock it. Have used that for trail side quick boost and remaining CO2 stayed in the cart for weeks under pressure.
I don’t use the cart holder it has, just use threaded carts and the head as it’s pocket friendly.