question on cooling system

[rr]

I find that at the very least, run distilled water and
antifreeze.

World of difference...

BobR.

>this may sound crazy but I thought I'd ask.
>
>question, in working on my Chevy 350 block, (valve job), I noticed that my
>cooling system, (heater core, block) is not pristine. in accidentally
>finding some heavy hydraulic web sites, I wondered if anyone has ever
>thought of some kind of filter in the heater hoses to trap rust, scale, etc,
>rather than letting it flow through the system.
>
>some of the stuff I've seen on the web, (not automotive), has been real
>impressive looking, at the very least one might use a patch of clear tubing
>and visually see the color/flow/ air content of the coolant, might be
>interesting.
>
>thanks, Ted.