Doram
Alkalinity
Minimum recommendation 40mg/L (ppm)
Old Ashbeck 20.5
Current Ashbeck 38
Total hardness
Minimum recommendation 50mg/L (ppm)
Old Ashbeck 42
Current Ashbeck 63
LSI at 95C
Old Ashbeck -1.46 to -1.64 mild to moderate corrosion, treatment may be needed.
Current Ashbeck -0.62 to -0.72 none to mild corrosion
I can’t comment as to whether your boilers are impervious to corrosion. How often do you check them?
Seem pretty moot anyway, how are you going to buy old Ashbeck going forward?
