The chemistry underneath your water.
Written by Pete Dalla-Betta — PhD soil microbiologist, 17+ years of process engineering, and the person who will actually design your system. No marketing fluff. Just the actual mechanisms, and what works in practice.
Hard Water & Scale
What causes hard water and how do you fix it?
Where calcium and magnesium come from, why they precipitate as scale, and how softening actually works — with the sodium math.
ReadAcidic Water & pH Adjustment
Why is my well water acidic and how do I raise the pH?
Why some groundwater is corrosive, what it does to copper and lead solder, and how calcite vs. sodium hydroxide compare for neutralization.
ReadIron & Manganese
Why does my well water turn orange or black after it sits?
Why clear well water turns orange or black minutes later — and why manganese fouls softeners if you treat it the wrong way.
ReadArsenic
How do you remove arsenic from well water?
Where arsenic comes from, why As(III) vs As(V) matters, and the media (Metsorb, iron coprecipitation, RO) that actually remove it.
ReadColiforms & E. coli
What does a positive coliform test on my well mean?
What coliform indicators mean, how fecal contamination reaches a well, and why UV needs the right pretreatment to work.
ReadTDS — Total Dissolved Solids
What is a good TDS level for drinking water?
How ultra-pure water eats copper pipes and high-TDS water scales them shut — two opposite failure modes from the same measurement.
ReadSediment, Turbidity & Color
Why is my water cloudy or tea-coloured?
Distinguishing physical particles from dissolved color, and matching the right filter mechanism to each cause.
ReadWater Heater Corrosion & Chemistry
Why does my hot water smell like rotten eggs?
Scale, sludge, rotten-egg smells, and anode-rod chemistry — what happens inside the tank, and how ICCP powered anodes change the game.
ReadPipe Corrosion & Galvanic Nobility
Why do my copper pipes keep getting pinhole leaks?
Why copper thins and bleeds while galvanized steel rusts and chokes — and the classic mistake of joining the two.
ReadActivated Carbon
What does an activated carbon filter actually remove?
How adsorption and catalytic reduction work, what carbon removes (chlorine, VOCs), and what it can't touch (dissolved minerals).
ReadMembrane Technologies — RO vs Nanofiltration
Should I use reverse osmosis or nanofiltration?
When to choose reverse osmosis and when nanofiltration is the smarter, more efficient whole-house answer.
ReadResidential Water Filtration System Maintenance
How often should a home water filtration system be serviced?
Routine checks, media replacement intervals, softener and RO care, and how to troubleshoot the most common issues before they cascade.
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