Hello all,
Has anyone encountered red brick filters inside of water cisterns?
In the cistern I have been studying, slightly off center on the floor is a solid block of cemented bricks. It measures approximately 49" high, and 2 bricks wide, and 3 1/2 bricks long. One brick width protrudes down the sides of the construction. On the top is a place built up of 1 brick wide into which the original ferrous pipe was inserted. There is no evidence of any opening anywhere.
Thanks,
S. Walter