DWT — Water Treatment, Explained
The knowledge base as a podcast: an episode for every section, with per-topic episodes for the deep dives — for the bakkie, the plant room or the commute. AI-narrated overviews of the written articles — the articles remain the reference.
56 episodes across all 11 sections — 28 in English, 28 in Afrikaans
- 01
Water quality fundamentals
The chemistry every other decision refers back to: TDS, hardness, pH, chlorine, scaling indices and solids measurement.
0:0019:36 - 02
Sediment filtration
Cartridges and housings: micron ratings, cartridge construction, carbon options, housing materials and staging.
0:0022:00 - 03
Media filtration
Sand, glass, carbon and catalytic media beds: how they work, how they differ, and what backwashing demands.
0:0022:39 - 04
Softening & ion exchange
How softeners work, sizing basics, regeneration control, and softening versus the alternatives.
0:0024:39 - 05
Reverse osmosis
Membranes, pretreatment, recovery and fouling — including the DuPont FilmTec family compared.
0:0023:04 - 06
UV disinfection
Dose, transmittance and lamp technology: what UV does, what it cannot do, and LED versus mercury lamps.
0:0023:41 - 07
Chemical dosing
Metering pump types compared, sizing rules, chemical compatibility and injection-point practice.
0:0020:40 - 08
Valves & system controls
Multiport valves, protection valves and the controls that keep vessels and pipework safe.
0:0022:42 - 09
Putting a system together
Treatment train sequencing, quick sizing rules and the commissioning faults seen most often.
0:0022:11 - 10
Specialised applications
Water for industries with their own rules: food and beverage, pharmaceutical, laboratory, steam, and keeping a plant running when the municipal supply cannot be trusted.
- 10.1
Food and beverage process water: what the regulations actually require
19:550:0019:55 - 10.2
Brewing and beverage water: alkalinity, chlorophenols and the RO-and-rebuild approach
22:450:0022:45 - 10.3
Food service water: coffee, combi ovens and ice
21:060:0021:06 - 10.4
Pharmaceutical water: purified water, WFI and what SAHPRA expects
22:220:0022:22 - 10.5
Laboratory water grades: Type I to Type III, ISO 3696 and CLRW
23:420:0023:42 - 10.6
Boiler feed water: softening is the entry ticket, blowdown is the bill
16:540:0016:54 - 10.7
When the tap cannot be trusted: point-of-entry treatment for substandard municipal supply
20:400:0020:40 - 10.8
Backup water: tanks, boreholes and rain — and the treatment each one needs
21:210:0021:21
- 11
Agricultural water
Water on the farm, written for drought: boreholes under falling water tables, livestock and irrigation water quality, dams and rivers as a source, and the treatment that keeps drippers, dairies and pack-houses running.
- 11.1
Borehole water in drought: when the water table drops
27:130:0027:13 - 11.2
Farm dams and rivers: mud, algae and making surface water safe
20:310:0020:31 - 11.3
Livestock drinking water: how much, how salty, and what poisons it
25:470:0025:47 - 11.4
Reading an irrigation water analysis: salt, sodium and the toxic ions
22:540:0022:54 - 11.5
Why drippers block: sand, lime, iron and slime
22:430:0022:43 - 11.6
Spray water: the most expensive water on the farm
25:050:0025:05 - 11.7
Fertigation: feeding through the water without wrecking it
20:220:0020:22 - 11.8
Dairy water: the parlour is a food factory
21:270:0021:27 - 11.9
Poultry and piggery drinking lines: the biofilm war
22:280:0022:28 - 11.10
Pack-house wash water: where the audit meets the dump tank
20:070:0020:07 - 11.11
Drought-proofing the farm supply: storage, rain and the arithmetic of scarcity
25:500:0025:50
Episodes are AI-narrated audio overviews of the written knowledge-base articles, generated from those articles and reviewed before publishing. The written articles remain the reference — confirm selections against manufacturer datasheets and the actual water analysis and duty conditions.