It's a gas

Persistent problems with "fobbing" (that's too much froth) on our beers has seen several visits from tech services. This morning they were back. John Smiths. Belhaven Best and Guinness were all pouring badly and a lot of wasted beer was resulting. Much head scratching until he noticed the cylinder of mixed gases which feeds these three beers...

The correct mix is 70/30 - 70% Nitrogen and 30% CO2. The cylinder had 70/30 written on the side of it, but the little tag attached to the tap at the top said 60/40. The extra 10% CO2 was enough to cause the problems we'd been having.

The builders were back today to do some brickwork. No more activty expected until Monday. I'll take some pictures when the steelwork's complete.