New mains, supplied and laid
Scotland-wide supply, lay, construction and testing of new water, fire, sprinkler and rising mains as a WIRS accredited contractor.
Service
Flow and pressure testing
Flow and pressure testing for clients and developers across Scotland, provided as a small-works survey when a fire, sprinkler or water main designer requires it.
- Small works
- Flow & pressure
- For designers
- Scotland-wide
Service overview
As part of our small-works services, and when a fire main, sprinkler or water main designer requires it, we can provide flow and pressure testing for clients and developers across Scotland. Designers need real flow and pressure figures to size a system correctly, and this survey gives them that. If the survey is required for your development, contact us for a quotation.
Note that a Scottish Water full-capacity flow and pressure test must be carried out by Scottish Water Horizons. The survey we provide is the flow and pressure testing your designer asks for as part of the design process, not the Scottish Water Horizons capacity test.
Key benefits
- For the designerProvides the flow and pressure figures a fire, sprinkler or water main designer needs to size a system.
- Small-works surveyOffered as part of our small-works services, quoted per development on request.
- Scotland-wideAvailable to clients and developers the length of Scotland, from our Ayr base.
- When your design requires itCarried out when the designer calls for it, so you are not paying for a survey you do not need.
- Clear on the scopeA Scottish Water full-capacity flow and pressure test must be done by Scottish Water Horizons; we are clear on which is which.
- One call to price itTell us the development and what the designer has asked for, and we come back with a quotation.
What's included
- Flow and pressure survey on site
- For fire, sprinkler and water main designs
- Figures reported for your development
- Small-works service, quoted on request
- Scotland-wide, from our Ayr base
- 01
Swabbing and pre-commission cleaning
A foam swab is driven through the length of the main to push out trapped air and the debris left behind during installation.
Stage focus:
- Foam swabbing
- Air removal
- Debris clearance
- 02
Hydrostatic pressure testing
The main is filled, brought up to working pressure and held, then monitored against the allowable loss for the pipe and length. We test PE, MDPE, barrier and ductile.
Stage focus:
- PE and MDPE
- Barrier and ductile
- Working pressure
- 03
Chlorination and disinfection
A dosed disinfection solution is introduced and held in the main for the required contact time, then dechlorinated and flushed down to the network residual.
Stage focus:
- Dosing
- Contact time
- Dechlorination
- 04
Bacteriological sampling
Water samples are drawn from the disinfected main and sent for laboratory analysis against the potable standard.
Stage focus:
- UKAS lab
- Coliforms & E. coli
- Potable standard
- 05
Certification
The results from every stage are assembled into the auditable certificate pack that Scottish Water accepts to permit connection.
Stage focus:
- Certificate pack
- Audit trail
- Scottish Water accepted
When do I need flow and pressure testing?
When a fire main, sprinkler or water main designer requires it to size the system for your development. It is offered as part of our small-works services. If the survey is required for your project, contact us for a quotation with the development details.
Is this the same as the Scottish Water capacity test?
No. A Scottish Water full-capacity flow and pressure test must be carried out by Scottish Water Horizons. The survey we provide is the flow and pressure testing your designer asks for as part of the design process, which is a separate small-works service.
Who is this service for?
Clients and developers across Scotland whose fire, sprinkler or water main designer has asked for flow and pressure figures. We carry it out from our Ayr base, Scotland-wide, and quote per development on request.
Related services
Often needed alongside
Pressure testing
Data-logged hydrostatic testing to prove the main holds working pressure before tie-in.
Certification and tie-ins
The chlorination certificate and sample results pack, plus primary tie-ins to existing Scottish Water infrastructure.
Send your site drawings. Get a fixed quote back.
Email them over or give us a call. You get a clear price, a date that fits your programme, and the compliance pack at the end. No pressure, no jargon.