We dissolve 1,400lbs of Epson Salt in 300 gallons of water. Also known as magnesium sulfate. It is not the same taste as sodium chloride/table salt. Epsom Salt has a slightly soapy/bitter taste.
Epsom Salts are industry standard for float tanks since sensory deprivation was first being studied in universities and labs in the 50-60’s trough today.
We source our Epsom Salt from a local company called Salt Works in Woodinville. They provide USP grade Epsom Salt of a high-quality standard.