In brief

  1. Jointing experience is proven by pressure test records and a walk of a recent site, not by years worked or a company profile.
  2. A crew that has only laid mains or irrigation line may never have made a pressurised building connection, which is where concealed leaks start.
  3. Ask for the jointing procedure, the test pressure and duration, and the name of whoever witnessed the test, then confirm that person still works for the contractor.

Water pipe joints experience gaps in Burao show up as concealed leaks and untested connections, not as a visible defect on handover day. A crew can look organised, own the right tools and still never have made the particular joint type your building needs. The gap sits between what the CV claims and what the crew has actually made and tested under pressure.

How does the experience mismatch start?

It often starts when experience is counted in years or in metres of pipe rather than in joint types and test regimes.

Water work divides into distinct skills. Laying a long run of uPVC or HDPE outside a plot, cutting and threading galvanised pipe indoors, and making a pressurised tee into a live line are different jobs with different failure modes. A crew strong in one may have no record in another. The person writing the bid may list pump installation, tank plumbing and borehole work as one line, and the supervisor reading it has no way to tell which joints were actually made and tested.

Two checks narrow the field. Ask which joint types the crew has made in the last year, by material and diameter, and ask which of those were pressure tested with an inspector present. Then walk a recent building the contractor completed and ask the caretaker where water has appeared on walls or floors. Neither answer is proof on its own, but together they show whether the claimed experience touches pressurised building connections at all. For local records, ask the municipal engineer's office whether it holds any inspection notes for the building, and treat a blank answer as a reason to test more, not less.

What does weak jointing experience do to the work?

Weak jointing experience produces leaks that are buried before anyone can see them.

A joint that is not cleaned, not squared or not tightened to the right feel can hold at low pressure and weep once the line is charged and the building is occupied. If the pipe is then buried in a slab, chased into a block wall or boxed in a riser, the leak appears later as damp plaster, a stained ceiling or a water bill nobody can explain. Finding it means opening finished work.

General practice for pressure pipework is to test each section before it is covered, at the pressure and for the duration written in the project specification, and to record who witnessed the test. Confirm those figures with the project engineer rather than relying on a rule of thumb. Where the site's ground water or soil may be aggressive, or where a joint or fitting may be exposed to salts or ground movement, the test matters more, not less. Ask the project engineer what the site investigation found about soil and ground water conditions, and treat that answer as the basis for any extra protection.

Frequently asked questions

Can I accept a contractor's word that the joints were tested?

Ask for the record: the section tested, the pressure, the duration and the name of the person who witnessed it. Then check that the witness still works for the contractor. If no record exists, agree with your engineer on a retest of the accessible sections before you accept the work.

What should the jointing test cover on a Burao building?

Each pressure section before it is buried or boxed in, at the pressure and duration stated in the project specification. Confirm those figures with the project engineer, because they depend on pipe material, diameter and the fittings used.

Local reporting: this article is written for building work in Burao and Somaliland. Ground conditions, prices and rules differ between places; confirm the details for your own site.