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Water Treatment Chemicals for Fishing & Marine in Namibia

Water runs through every stage of fish processing — potable supply for a listed factory, ice plants judged by their clarity, boilers fighting coastal feed water, and effluent that must leave the site defensible. Swachem’s Walvis Bay depot supplies the chemistry for all four: chlorination that holds its strength, softening for steam plant, coagulants for effluent, and the test kit to prove each number.

The local problems this range solves

  • Factory potable water requiring documented chlorination for export listing
  • Ice plants needing clean, treated feed water at scale
  • Boiler feed hardness scaling steam plant behind the cookers
  • Organic-heavy effluent needing coagulation before discharge

Compliance & documentation

Potable-water chemicals meet drinking-water treatment grades; chlorination-programme documentation supports export-listing water-safety requirements.

Local tip

Test factory chlorine residuals at the furthest tap after the morning peak — coastal factories with long internal lines routinely pass at the dosing point and fail at the fillet line, and that far tap is where the auditor samples.

Recommended products

The lines fishing & marine buyers draw from this category most.

Sodium Hypochlorite (11%, 11.5%, 220kg, 25L) pack

Sodium Hypochlorite (11%, 11.5%, 220kg, 25L)

Liquid chlorine disinfectant at 11–11.5%, in 25 L and 220 kg supply.

Available in220 kg25 L

In stock: Windhoek & Walvis Bay

SDIC (Sodium Dichloroisocyanurate) pack

SDIC (Sodium Dichloroisocyanurate)

Stabilised chlorine granules/tablets — transportable disinfection for remote sites.

Pack sizes on request

In stock: Windhoek & Walvis Bay

Sodium Hexametaphosphate (water softener) pack

Sodium Hexametaphosphate (water softener)

Sequestrant that holds hardness in solution — protects geysers, boilers and drip lines.

Pack sizes on request

In stock: Windhoek & Walvis Bay

Ferric Chloride Liquid (FeCl3) pack

Coagulant for water and effluent treatment; effective across a wide pH range.

Pack sizes on request

In stock: Windhoek & Walvis Bay

Polyelectrolyte / Polyacrylamide pack

Flocculant aid dosed in small amounts to bind pin-floc into fast-settling floc.

Pack sizes on request

In stock: Windhoek & Walvis Bay

Go Bio PC5 Tester pack

Go Bio PC5 Tester

Biodyne

Pocket pH/conductivity tester for field water testing.

Pack sizes on request

In stock: Windhoek & Walvis Bay

Browse the full Water Treatment Chemicals range →

Water Treatment Chemicals for fishing & marine: asked and answered

What chlorination setup satisfies an export-listing inspection?

Measured, documented and verified: dosing to hold a stated free-chlorine residual at points of use, daily DPD test records, and SDS plus dosing procedures on file. Whether hypo through a dosing pump or SDIC through a feeder, the inspector reads your logbook before your plumbing — we supply the chemistry, the test reagents and the template both.

Our ice is cloudy — is that a water-chemistry problem?

Usually yes: hardness, air and organics in feed water freeze visible. Softening or sequestering the feed (hexametaphosphate), carbon filtration where taste and odour intrude, and clean chlorination upstream produce the clear, neutral ice fish buyers read as freshness. An ice plant is a water plant wearing a different hat — treat the feed accordingly.

How do we protect boilers running on coastal feed water?

Soften or sequester the feed, control alkalinity, and blow down on schedule — coastal supplies carry hardness plus chlorides that punish neglect with scaled tubes and pitting. A monthly hardness-and-pH check on feed and blowdown (PC5 tester and reagents from our lab range) catches drift before the fuel bill announces it.

What does effluent coagulation look like for a fish factory?

Ferric chloride is the fish-industry workhorse — it handles fatty, protein-rich streams and wide pH swings — with polyelectrolyte flocculating the fines and dramatically shrinking sludge volume. Dose rates come from jar tests on your actual effluent, which we will run with you; fish effluent varies too much between plants for book values.

Serving Fishing & Marine from our Walvis Bay branch

Swachem Walvis Bay · 4th Street East, Walvis Bay · Tel 064 204 865 · Monday – Friday, 08:00 – 17:00

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Quote water treatment chemicals for your fishing & marine operation

Served primarily from Swachem Walvis Bay — 064 204 865. SDS, grades and delivery scheduling included in the quote.