Well, clearly the best thing to do is get your water tested by a water specialist. Look for more than just iron. Hardness is also a big problem for water related appliances.

You may need a quality water softener as cheap ones won't last as long or perform as well.

There may be problems developing in your water heater. Try flushing it out.

Go to Bob Villa's section on water conditioners/softeners to find out the basics.

1. make sure your feet are clean before getting in, you would be surprised at how much soil they may hold.

2. have you narrowed down whether it is hot or cold water?

We have village water. Fill up the tub with cold water and it is clean as can be. Switch over to hot water and its bad. By the time the water is about 18 inches high in the tub you can not see the bottom of the tub through the water. I will flush out the water tank and see what that produces. In reagrds to a water spec. is this something that a normal plumber can do or would I need a spec. like you mentioned. Thanks.

There may be a couple of factors to consider as to why the hot water is behaving one way and the cold seems to be fine.

Hot water "storage" tanks can covert some natural elements. You have a large volume of water, standing for long periods of time, under high temperatures. These three factors can precipitate dissolved minerals and salts. In the last seven years they may have built up and are now being realized in your water.

Another factor may be your plumbing. Many water heaters have short sections of galvanized piping coming out of the top of the heater. Mixing metals can cause a reaction in water. piping may need to be grounded.

An organic iron may be developing in your heater.

The anode rod is probably gone and may need replacing.

You didn't mention what type of water treatment you have. What are you using and what your your source water conditions? Iron, hardness, TDS, etc.?

More info would help.

Open slightly the drain and catch some water...just a few ounces...and see what color it is.