Water's back up to an inch above the bottom of the frames, from 'sloshing' the water in front of the window on the pond side i can see no water 'sitting' the other side of it between the glass and the liner. So touch wood all is well.
Bottom levels of bricks go in on the slabs............i'm gonna need a lot more bricks! Heaters sat in the pipe with hose out from the pump flowing water over them but currently switched off as nothing or no-one's going in there again for a few days. Cloth and towel temporary covering thrown over so when heaters are on it stays warm. Looking at Thursday or Friday before anymore proggression now due to work.
And for Bigcol; hope you got back ok, 'Fluffy' the big tsn was more than happy to be out and active when i got back and no-one else was here! And your pacu is settled in and happy with others, that's him at the back in the last picture.