As usual, things are turning a bit last minute. Manifold is now on, loops are on etc.   I have started to bleed my 12 circuits and am finding that there is a lot of air being dispelled in the bucket (had to empty about 6 buckets on one loop already). As concrete is being poured tomorrow first thing I'm feeling a bit anxious. Have had to rig up a temporary water supply to the manifold from an outside temporary tap involving a longish hose pipe and there are a few drips along the way to