SIX7 PLUMBING
SIX7 Plumbing Low Water Pressure Diagnostic Colombo
Weak pressure has five causes that mimic each other. We gauge at every point, isolate the true one, and hand you a written verdict — the fee waived if we do the repair.
T&Cs apply — /pricing/ & /disclaimer/
In Colombo the split is usually two: an internal leak bleeding pressure behind tile, or the mains delivering less than it used to. The internal one shows in bathrooms first — buried sockets decay, water goes into the wall, taps trickle. The mains one shows everywhere at once, and no pump will fix it.
Between those sit scale-choked lines, a dying pump and a stuck valve, each readable as "weak pressure" at the tap. Point-by-point gauging separates them in under an hour. If the loss is the board's side of the meter, we say so, point you there, and don't bill labor against their problem.
Weak everywhere at once
The mains deliver less than they used to — everywhere at once.
Weak only upstairs
Good at the tap downstairs, weak at every tap above.
Sudden drop after renovation
A sudden drop after work — gauged point by point to isolate.
Gradual decline over months
Scale-choked lines close down slowly, over months.
What You're Paying For
Transparent pricing — here is exactly what our diagnostic covers and what costs extra.
What's Included
- Pressure gauging at multiple points
- Cause isolation & identification
- Written finding & fix quote
- Diagnostic waived if repair proceeds same visit
Parts & Extras
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Booster Pump Only if the diagnosis proves it's needed — not as a first guess.
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Valve Replacement Stuck valves replaced at cost + 15% markup.
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After-Hours Dispatch Nights, weekends, and holidays: +40% on hourly rate.
"A booster pump fixes everything."
A pump downstream of a restriction only pushes harder into the same clog — the fix is the restriction, not the horsepower.
Low pressure is three different faults — supply, scale or a stuck valve — and each needs its own fix, not a bigger pump.
Cause
Scale-choked lines, dying pumps, stuck valves, mains-side loss and hidden leaks all read as "weak pressure" at the tap.
How We Fix It
Measure at points, isolate the cause, written finding + fix quote; fee waived if we do the repair same visit.
Test your pressure at multiple points. If it's weak everywhere, it's a supply problem. If it's weak in one spot, it's a local blockage.
Low pressure isn't just annoying — it's a sign of a bigger problem. Don't ignore it until it fails completely.
Weak pressure is diagnosed at the meter, not guessed at the tap — we take static and flowing readings before naming a single cause.
How It Works
Our process is simple, transparent, and designed to find the true cause without wasting your money.
We gauge pressure at every point in your system to map the loss accurately.
Isolate the true cause — scale, pump, valve, mains-side, or hidden leak.
Written finding + fix quote before any work. Diagnostic waived if we repair same visit.
"We gauge at the meter before we touch a pump — if the fix is not a pump, we say so, even when a pump would earn us more."
— SIX7 Plumbing, Mount Lavinia
Frequent Questions
Everything you need to know about pressure diagnostics, pricing, and what to expect.
Really waived?
Will you just sell me a pump?
What do I get?
Request a Callback
Fill out the form below and we'll get back to you within 24 hours with a detailed estimate.
Pressure Care Tips
Before We Arrive
- • Test taps at multiple points — upstairs, downstairs, kitchen, bathroom.
- • Check if neighbours have the same issue — that points to mains-side.
- • Note when it started — sudden vs gradual helps us diagnose faster.
Common Mistakes
- • Don't install a booster pump without diagnosing the cause first.
- • Don't assume it's the board — test at your meter first.
- • Don't ignore sudden drops — they usually mean a leak or valve failure.