Document library
Everything worth looking up before you ask: manufacturer spec sheets, knowledge base articles, the calculators, and drawings for the lines we carry. Free to use, and linked again from each product page.
1004manufacturer spec sheets
Data sheets and manuals across 51 brands — including documents the manufacturers no longer publish. Searchable, grouped by brand and series.
62knowledge base articles
Component basics, when to use which, and how the options compare — written for engineers earlier in their careers, every guide in English and Afrikaans.
11calculators and references
Scaling indices, dosing, RO recovery and media sizing — plus the Runxin valve-code converter and full cross-reference table.
56podcast episodes
The knowledge base in audio — AI-narrated episodes for every section, in English and Afrikaans, playable on the page or downloadable for the road.
DWT product datasheets and drawings
Control Valves
Dosing Pumps
- DOSAMS200Seko Kompact AMS200 solenoid dosing pump, 5 L/h, 10 bar max.Datasheet
- SEKOAKS603Seko Tekna AKS603 solenoid dosing pump, 8 L/h, 12 bar max.Datasheet
- DOSTPG603Seko Tekna TPG603 solenoid dosing pump, 8 L/h, 12 bar max.Datasheet
- DOSTPR603Seko Tekna TPR603 solenoid dosing pump, 8 L/h, 12 bar max.Datasheet
Filter Cartridges
- MBS10M1Melt-blown polypropylene sediment cartridge 10" standard (62 mm OD), 1 µm nominalDatasheet
- MBS10M5Melt-blown polypropylene sediment cartridge 10" standard (62 mm OD), 5 µm nominalDatasheet
- MBS10M10Melt-blown polypropylene sediment cartridge 10" standard (62 mm OD), 10 µm nominalDatasheet
- MBS10M20Melt-blown polypropylene sediment cartridge 10" standard (62 mm OD), 20 µm nominalDatasheet
- MBS20M1Melt-blown polypropylene sediment cartridge 20" standard (62 mm OD), 1 µm nominalDatasheet
- MBS20M5Melt-blown polypropylene sediment cartridge 20" standard (62 mm OD), 5 µm nominalDatasheet
- MBS20M10Melt-blown polypropylene sediment cartridge 20" standard (62 mm OD), 10 µm nominalDatasheet
- MBS20M20Melt-blown polypropylene sediment cartridge 20" standard (62 mm OD), 20 µm nominalDatasheet
- MBS30M1Melt-blown polypropylene sediment cartridge 30" standard (62 mm OD), 1 µm nominalDatasheet
- MBS30M5Melt-blown polypropylene sediment cartridge 30" standard (62 mm OD), 5 µm nominalDatasheet
- MBS30M10Melt-blown polypropylene sediment cartridge 30" standard (62 mm OD), 10 µm nominalDatasheet
- MBS30M20Melt-blown polypropylene sediment cartridge 30" standard (62 mm OD), 20 µm nominalDatasheet
- MBS40M1Melt-blown polypropylene sediment cartridge 40" standard (62 mm OD), 1 µm nominalDatasheet
- MBS40M5Melt-blown polypropylene sediment cartridge 40" standard (62 mm OD), 5 µm nominalDatasheet
- MBS40M10Melt-blown polypropylene sediment cartridge 40" standard (62 mm OD), 10 µm nominalDatasheet
- MBS40M20Melt-blown polypropylene sediment cartridge 40" standard (62 mm OD), 20 µm nominalDatasheet
Filtration Media
- AFM0Dryden Aqua AFM grade 0 activated filter glass media (0.25–0.5 mm)Datasheet
- AFM1Dryden Aqua AFM grade 1 activated filter glass media (0.4–0.8 mm)Datasheet
- AFM2Dryden Aqua AFM grade 2 activated filter glass media (0.7–2.0 mm)Datasheet
- AFM3Dryden Aqua AFM grade 3 activated filter glass media (2.0–4.0 mm)Datasheet
- AFM1_NGDryden Aqua AFMng grade 1 activated filter glass media (0.4–0.8 mm), 25 kgDatasheet
- AFM2_NGDryden Aqua AFMng grade 2 activated filter glass media (0.7–2.0 mm), 25 kgDatasheet
- GACLMS1Rotocarb ProCarb-900 granular activated carbon, macadamia shell, 1 kgDatasheet
- GACLMS20Rotocarb ProCarb-900 granular activated carbon, macadamia shell, 20 kgDatasheet
- BIRMClack Birm iron and manganese reduction media, 18 kg (28 L)Datasheet
- DMI65DMI-65 catalytic iron and manganese filtration media, 21 kgDatasheet
- CALCITE30Granular calcite pH-correction media 2.0–3.0 mm, 30 kgDatasheet
- SOFTR1Extrepure 001×7 softening cation resin, 25 LDatasheet
- RES_MIXBEDIEExtrepure MB400 mixed-bed deionising resin, per litreDatasheet
- RES_TANA860S_1Purolite A860S tannin removal resin, 1 LDatasheet
- RES_TANA860S_25Purolite A860S tannin removal resin, 25 LDatasheet
- SOFTSALT10Extrepure softener salt tablets, 10 kgDatasheet
- KDFL1000KDF 55 copper-zinc process media, 1 kgDatasheet
FRP Vessels
- FRP844Fibreglass pressure vessel 8" x 44", 2.5" top opening (32.5 L)Datasheet
- FRP1054Fibreglass pressure vessel 10" x 54", 2.5" top opening (62.5 L)Datasheet
- FRP1252Fibreglass pressure vessel 12" x 52", 2.5" top opening (85.3 L)Datasheet
- FRP1354Fibreglass pressure vessel 13" x 54", 2.5" top opening (102.3 L)Datasheet
- FRP1465Fibreglass pressure vessel 14" x 65", 2.5" top opening (146.8 L)Datasheet
- FRP1465-4Fibreglass pressure vessel 14" x 65", 4" top opening (146.8 L)Datasheet
- FRP1665Fibreglass pressure vessel 16" x 65", 2.5" top opening (191.7 L)Datasheet
- FRP1665-4Fibreglass pressure vessel 16" x 65", 4" top opening (191.7 L)Datasheet
- FRP1865-4Fibreglass pressure vessel 18" x 65", 4" top opening (235 L)Datasheet
- FRP2472-4Fibreglass pressure vessel 24" x 72", 4" top and bottom openings (460.5 L)Datasheet
- FRP3072-6Fibreglass pressure vessel 30" x 72", 6" flanged top and bottom connections (718.9 L)Datasheet
- FRP3672-6Fibreglass pressure vessel 36" x 72", 6" flanged top and bottom connections (969.2 L)Datasheet
Membrane Pressure Vessels
- HS4040RO300FRPFlowShell HS4040-300 4040 end-port membrane housing, FRP, 20.7 barDatasheet
Ozone Systems
RO Membranes
- BW-30PRO4040DuPont FilmTec BW30 PRO-4040 brackish water RO elementDatasheet
- LCLEPRO4040DuPont FilmTec LC LE PRO-4040 low-energy RO elementDatasheet
- LCHF-4040DuPont TapTec LC HF-4040 high-flow RO elementDatasheet
- 1812RO75GPDDUPDuPont FilmTec TW30-1812-75 residential RO element, 1812 (284 L/day)Datasheet
- 1812RO75GPDVONVontron ULP1812-75 residential RO element, 1812 (284 L/day)Datasheet
- 3012RO300GPDVontron ULP3012-300 RO element, 3012 (1 136 L/day)Datasheet
- 3013RO400GPDVontron ULP3013-400 RO element, 3013 (1 514 L/day)Datasheet
UV Systems
- EB24EB-24 stainless steel UV steriliser, 85 W, 90 L/min, 1.5" portsDatasheet
- HC120HC-120 stainless steel UV steriliser, 14 W, 7.5 L/min, 1/4" portsDatasheet
- HC480HC-480 stainless steel UV steriliser, 29 W, 30 L/min, 1/2" portsDatasheet
- HC720HC-720 stainless steel UV steriliser, 40 W, 45 L/min, 3/4" portsDatasheet