I am, but it’s such a small amount for me, for what seems like a...

I am, but it’s such a small amount for me, for what seems like a fairly simple and logical process. It sounds like they have the equivalent of galvanised water pipes that have (like they do) had a build up of sediment around the inside of the pipe thereby blocking and restricting gas transmission. To my simple brain, it sounded as though it had been done before with success, that the upside is significant, and as a last ditch process, I thought it was worth the chance. “Fool me once, shame on you…..fool me twice, shame on me !”
If it doesn’t work, there won’t be a next time !