why do u have 2 names for hydrochloric acid?
hey well this is where i chime in with my 2 cents on acid
i work with 32%hydrochloric acid 5 days a week cleaning brick work on new houses we mix differnt strengths for differnt kinds of brick the highest mix we do is about 25% in a 15L buckect which is about 3-4gl, i wear gloves and glasses if its windy, and long pants, acid will eat and stain almost every kinda fabric altho tracky pants seem to be able to stand the test of time
when diluted the acid isnt that bad it burns a little when u get it on ur arms it does sting when u get a little droplet of water in ur EYE but its not really that bad freshwater wash will get it out saline is also good for this and should be in ur first aid kit, the fumes are the worst thing about the acid and should be thought about wind direction for the fumes other then that its not that bad once u mix it with water, acid should be added to water not water to acid
the other thing that is very very important is that ACID RUSTS METAL quickly so i dont know how much id would run water through a running pump
if ur working out side it will staine metal, concrete kill plants and change the colour of brick pavers and clay pavers and cause and algea called vernadium to grow in/on lime stone and like coloured bricks the only way to kill the algea which is drak green to light yellow is with chlorine
sorry for the long post but i do work with neat acid and know a thing or 2 about it and just wanted to pass on information