Since my last visit, the bladder area has been pumped dry (and there had been no rain!), and Garry had built the retaining wall for the bladder, as seen here about mid image. This is as seen from the north western corner of the family room.
A closer view of the Garry's new wall to keep the bladder in place. Note that there are holes in the lower level of bricks (below the gravel fill) to allow the ground water to pass out to the sump on the other side, from where it will be pumped out.