We are in need of a very experienced master plumber. We had our 2 hot water heaters replaced a few months ago. Since that time many of our faucets and shower heads are a combination of water and spitting air (hot water only). To get rid of the air we were told to turn on all hot water in basement, then main level, then upper floor. This did not work. When we did this many of the "waterfall" style faucets (see pic) shot out hot water everywhere and the showers all had sediment in them (see pic). Our neighbor's plumber stopped by and took apart some of the hot water lines in the sinks - all filled with sediment. We need the air gone and the sediment gone for good. We need someone who has experience with this type of issue. Please reply with your experiences doing a job like this and also include an estimate if possible.