Water analysis
Without an analysis, choosing a filter is guesswork. Hardness, iron, turbidity, chlorine: the whole line and its cost follow from those numbers.
Home/Filtration
◆Service 04 · Filtration
Water filtration and treatment — from the analysis to the drinking line
We take a water analysis, select a line to match what is actually in the water, install it and service it: mechanical filtration, softening, iron removal and a separate line for drinking.
What the work covers
six parts, one responsibilityMechanical filtration
Mesh and cartridge filters at the inlet. They catch sand and rust. Without them, everything downstream dies early.
Softening
An ion exchange softener. Hard water means scale in the boiler heat exchanger, in the cylinder and in the washing machine, plus more detergent than you should be using.
Iron removal
Wherever the water comes from a borehole. Iron leaves rust-coloured marks on the fittings, a taste in the water and stains on laundry.
Drinking line
BWT Slim under the sink: water for drinking and cooking kept separate from the utility supply, on its own tap.
Servicing
Cartridge changes, regeneration, salt, checks on a schedule. A filter left unserviced works worse after a year than no filter at all.
Why hardness comes first in Tashkent
scale costs more than it looksWater in Tashkent and the surrounding region is hard. That is not an opinion — it is what you see in any heat exchanger opened up after a couple of years of service.
Limescale conducts heat tens of times worse than metal. A millimetre of it on the exchanger wall already means a noticeable amount of extra gas over a heating season.
A scaled boiler heats more slowly, cycles more often and fails early. And no manufacturer honours a heat exchanger warranty where scale is present — it is written into the terms.
So for us softening is not an optional extra but part of the heating system. Water treatment goes into the same design as the boiler room, rather than being bolted on later.
Equipment
we are the official representative of BWT in Uzbekistan| Element | Brands |
|---|---|
| Inlet mechanical filters | BWT |
| Softeners | BWT |
| Iron removal | BWT |
| Under-sink drinking systems | BWT Slim |
| Pipework and isolation valves | Viega · Carlo Poletti |
| Pressure booster pumps | Grundfos |
How the job runs
from the water sample to the service schedule- 01Enquiry and sampleWe come out, take a water sample and look at where the inlet sits.1–2 days
- 02Analysis and selectionThe laboratory reports the composition; we size the line for the flow and the hardness.3–7 days
- 03ProposalAn itemised quotation: equipment, pipework, labour and a year of consumables.1–2 days
- 04InstallationThe line installed, pipework, drain run out, regeneration started.from 3 days
- 05Setting up and handoverSet to the measured hardness, operator briefing, a replacement and salt delivery schedule.1 day
Where it already runs
residential complexes and buildings across Tashkent and the region
Reviews and reports
videos from our channel · in UzbekZafar aka
Engineer · long-time BWT user
“We have been using BWT filters for years, both at the office and at home.”
Aripov Saidazimkhodja
Water treatment specialist
“When people ask me which filter is best, I always name BWT.”
Abror Hamdamov
Architect · modern construction
“In the projects we build today we specify BWT.”
Ramziddin
Filtration expert
“I recommend BWT — these are the number one water filters in Europe.”
Temur Akhmedov
Urban planner
On BWT filters and why clean water matters for a city as much as for a home.
Our own test
BWT Uzbekistan team
“We checked how the water changes ourselves first, and only then started selling it to others.”
The technology
Field comparison
“No one else has filters with this technology” — water before and after, in one shot.
Ziyodullo Abduqahharov
Guest at the showroom opening
“We did not bring a single plastic bottle of water to this event.”
Showroom opening
Tashkent · ceremony
The official BWT showroom opened in Tashkent. How it went.
Opening · full record
Tashkent · ceremony
The full report from the opening ceremony.
Branch in Tashkent
News
In short: BWT now has an official branch in the city.
Premium filters
News
What you can buy in Tashkent now and why it is not an ordinary jug.
Our footage, our channel — BWT | Uzbekistan on YouTube
Questions people ask before the calculation
short and to the pointHow do I know whether I need water treatment?
Scale in the kettle, white marks on the shower glass, deposits on the taps, laundry that comes out stiff — all of it points to hard water.
Only an analysis gives a firm answer. We take the sample on site and send it to a laboratory, then size the line from the result rather than from an impression.
Can you drink softened water?
Softening solves an equipment problem, not a drinking one: it removes hardness salts and adds sodium. Good for the kettle, not the point for a glass.
Drinking water gets its own line and its own tap. Different job, different equipment.
How much salt does a softener use?
It depends on the hardness and on how much water you actually use. The same unit behaves quite differently in a household of two and in a house with a pool.
Consumption is calculated during selection and we put a year of it into the quotation, so it is not a surprise after commissioning.
What happens to the boiler without softening?
Scale on the heat exchanger, output down, more gas burned and an early failure. On a wall-hung boiler the secondary exchanger shows it first.
The unpleasant part is that the manufacturer withdraws the warranty in that case. A softener costs less than one heat exchanger.
Can it be fitted to an existing system?
Yes, provided there is space at the inlet and somewhere to run the regeneration drain. Usually that means a services cupboard, a bathroom or the boiler room.
Where there is no space at all, we start with mechanical filtration and the drinking line — that gives an immediate effect and takes almost no room.
We will take a sample and size the line
Leave a request — we will come out, take a water sample and come back with the composition and a selection. The visit and the calculation are free.