New mains swabbed, pressure tested, disinfected and sampled before they carry supply
Commissioning software for reservoirs and networks where every new main, valve and service reservoir has to be proven clean and pressure-tight before it joins the live network.
New trunk mains, distribution mains and service reservoirs cannot simply be connected to a live network — each section is swabbed, pressure tested, chlorinated, flushed and bacteriologically sampled before it is declared fit for supply, and a service reservoir is structurally inspected, cleaned and disinfected before it holds wholesome water. Deskely holds every main section, valve, reservoir cell and sample point in one register with the disinfection and fit-for-supply gates built in.
- Assets
- Main sections, valves, reservoir cells
- Test
- Swab, pressure test, disinfection, bacti sample
- Interface
- Live distribution network and DMA boundary
- Gate
- Fit-for-supply sign-off
Choose your project type
The problem
A network scheme is hundreds of pipe sections, and a spreadsheet cannot show which one has actually passed its bacti sample.
A trunk main or distribution network scheme is built in sections by different civil crews over months, each section needing its own swab, pressure test, chlorination and — critically — a clear bacteriological sample before it can be connected live.
When swabbing records, pressure test charts and lab sample results sit in a site engineer's notebook and a separate lab portal, nobody can confirm at connection which sections have a clear sample and which are still awaiting a retest after a failed result.
Deskely tags every main section and reservoir cell individually, so fit-for-supply status is reported section by section instead of assumed from a general contractor sign-off before a live connection is made.
Setting up the register
Main sections, valves and reservoir cells are tagged assets matched to the network schematic.
Network schematics, main lay drawings and reservoir general arrangement drawings are parsed into a reviewed register, so every main section, valve chamber and reservoir cell carries its chainage, its material and its design pressure from day one.
Swabbing checklists, hydrostatic pressure test templates and disinfection and bacteriological sampling sequences are defined once and instantiated across every section, so a scheme with two sections or two hundred uses the same proven test set.
Reservoir structural inspection, cleaning and cell-by-cell disinfection are held as their own record set, distinct from main commissioning, because a reservoir often has its own separate fit-for-supply gate before it is brought online.
Execution
Swabbing, pressure testing and disinfection are proven section by section before a live connection is made.
Each main section is swabbed to remove construction debris and hydrostatically pressure tested to its design pressure before being chlorinated to a specified concentration and contact time, with results captured against the exact section rather than the scheme as a whole.
Following chlorination, sections are flushed and a bacteriological sample is taken and sent to a laboratory; a failed result triggers a re-flush and re-sample against the same section, so the retest history is never lost.
Reservoir cells follow the same discipline — structural inspection, cleaning, disinfection and sampling — logged per cell, so a two-cell reservoir can bring one cell into supply while the other remains under test.
Fit-for-supply sign-off and handover
A section joins the live network on a clear sample, not on an assumption that yesterday's flush was probably enough.
Fit-for-supply sign-off draws on the same swabbing, pressure test and bacteriological sample records built during commissioning, so the evidence the water company's water quality team requires before a live connection is an export rather than a phone call to the lab.
The handover pack for the network operations team includes as-built main lay drawings, valve schedules and reservoir inspection reports keyed to the asset register, ready for network operations from the moment supply begins.
Every signature carries a name, role and timestamp, which is what the water company's water quality and network teams expect before a section is declared live rather than provisionally connected.
The dossier
Proof a new main is clean before it joins the live network.
Every new main and service reservoir carries its own swabbing, pressure and disinfection record before a water company will accept it into supply. The dossier has to trace each length of pipe and each reservoir cell back to a signed test, not a general statement of completion.
Pipeline swabbing and flushing record
The main has been swabbed and flushed to remove construction debris before pressure testing begins.
Completed immediately after pipe laying and jointing, before hydrostatic test.
Hydrostatic pressure test certificate
The main holds test pressure for the specified duration with pressure loss inside the allowable tolerance.
Performed section by section once swabbing is complete.
Disinfection and contact time record
The main or reservoir has been dosed to the required chlorine concentration and held for the specified contact time.
Carried out after a successful pressure test, before sampling.
Bacteriological sampling certificate
Water quality samples taken after disinfection and flushing meet the drinking water bacteriological standard.
Taken after disinfection water has been flushed from the main or reservoir.
Reservoir structural and roof inspection record
The service reservoir structure, roof and access covers are sound and free of ingress points before it holds potable water.
Completed before the reservoir is first filled with disinfection water.
Fit-for-supply sign-off certificate
Swabbing, pressure testing, disinfection and sampling are all complete and signed for the asset entering supply.
Signed by the water company before the main or reservoir is connected live.
How it runs
From pipe laying to a live, sampled connection.
Network schemes reward a register that treats every section as its own asset, because a single missed bacteriological sample is exactly what a water quality incident review will trace back to.
- 01
Model the network by section
Main sections, valves and reservoir cells modelled as assets tied to the network schematic.
- 02
Parse the network design
Main lay drawings and reservoir general arrangements drafted into a reviewed register with chainage and pressure data attached.
- 03
Template swab, test and disinfection
Swabbing, pressure test and disinfection sequences defined once, instantiated across every section and cell.
- 04
Gate connection on a clear sample
Fit-for-supply sign-off reported from a clear bacteriological sample, with retests tracked against the same section.
FAQ
Questions about Reservoirs and distribution networks scopes.
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