How do you use Muriatic acid to clean your water heater and copper hot water pipes?

Yes you can use muriatic acid to clean out the hot water coils in a boiler. I am a license Heating technician and I use it all the time. I use 16oz per gallon of water and it does a great job of removing all the scale from inside the coils. do you have a pump to send the acid and water mixture thru the coil. vinegar and water will not touch the scale inside hot water coils in boilers. I tried it and it does not work at all.