My friend's house is about 60 years old and some of the water pressure in the kitchen, upstairs bath and others is very low---city water. I believe it's from lots of deposits in the cast iron pipes reducing the water flow---I replaced the water heater and the inlet/outlet pipes were a third of their original diameter from deposits. Is there a method or products available to clean out the pipes without replacing them? My thought would be to turn off the water and drain the pipes, cap off any pipes from the heater, remove all the connections at the shutoff valves and then pour Limeaway or CLR into the pipes to dissolve the deposits and then flush them out. Any ideas if this is ok to do or any other non-toxic treatments on the market. I'd like to help her solve this problem without re-piping the whole house but I want a safe solution also. Thanks for any input and help!! Sorry folks....meant to say it's galvanized pipe, not thinking straight. Just trying to be creative in solving the deposit problem without re-piping a two story section and tearing up the walls. Would some kind of auger device work without breaking any connection---just to minimize the restriction? At the least, I would like to clean out the vertical runs going up and maybe replace the rest in the basement.
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