IIRC London's water has always been quite hard.
So much so many commercial laundries located themselves close to but outside of that city where they could find softer water. Oh that and until the air was cleaned up and or things went to machine drying hanging out the wash was asking for trouble.
Many of the problems of hard water were solved then as now by installing water softening equipment. Can only imagine how dreadful wash day must have been using only soaps and all that hard water.
So much so many commercial laundries located themselves close to but outside of that city where they could find softer water. Oh that and until the air was cleaned up and or things went to machine drying hanging out the wash was asking for trouble.
Many of the problems of hard water were solved then as now by installing water softening equipment. Can only imagine how dreadful wash day must have been using only soaps and all that hard water.