Boiler water treatment before heating season: what the chemistry needs to look like before the first firing.
The pre-season boiler inspection covers the mechanical side of the system. Combustion analysis, safety control testing, heat transfer surface inspection, breeching review, and controls verification. All of it matters. None of it accounts for what is happening in the water. A boiler that is mechanically sound and chemically neglected will develop scale, corrosion, and oxygen