Pond next to the tannery

There are now 2 layers of Envirotex in this pond. Before I added the second layer, I switched gears and put in the low rock wall at the base of the tannery building. There will be outfall pipes coming from the building. The reddish stains in the water show where they'll be. To get the effect, I added a bit of red paint to the last few drops of Envirotex, and poured that into those spots, letting it diffuse naturally through the viscous liquid.