Here is a wide-angle shot looking down into the water shiield after concluding the fill today. The tank is about 110 inches in diameter and the water is 90 inches deep. I think this is just a thing of beauty, like dark matter detector meets warp core. The vessel in the center is the pressure vessel, which holds mineral oil. Inside the mineral oil is a set of jars filled with super-heated liquid freon. The freon is the dark matter target while the oil provides pressure to recompress the freon. https://chirp.cooleysekula.net/attachment/0f58cc086a7f71e4767899436e41be9e4a604d37b42a36a122e4078aadec381d/view