Re: Water Additives..need some suggestions.
The tubing i posted in photo is quite old (the colour was white when i removed it from my loop). It never saw any WW, as i said, only distilled water, and later antifreeze. Maybe Tygon coats more slowly but it still gets the white deposit over time. The tubing i currently have running is like 2 year old, and it's white as well.
My loop is copper + plastic (tygon tubing, reservoir) + brass (heatercore, fittings) + some nylon fittings
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