Complex sentence: Prisoners had no privacy in going to the toilet and the toilets would emit a strong stench due to fact they were flushed with salt water and that hot water faucets were not installed until the early 1960s, shortly before closure.
Split into simpler sentences: Prisoners had no privacy in going to the toilet and the toilets would emit a strong stench because they were flushed with salt water. Hot water faucets were not installed until the early 1960s, shortly before closure.