SIX7 PLUMBING
SIX7 Plumbing Tank Overflow & Leak Stopping Colombo
Overflow running non-stop or a weep at the base — stopped same visit: valve adjusted or replaced, joints re-seated, overflow line cleared and tested.
TANK OVERFLOW & LEAK FIXES
From LKR 4,500
+ visit LKR 2,500 — Pay after approval
T&Cs apply — /pricing/ & /disclaimer/
Is this your problem?
- Overflow pipe running day and night
- Weep at the outlet union
- Damp slab under the tank
- Blocked or undersized overflow line
Two failure families arrive under this name. Overflow side: the valve or float never closes, or the overflow line itself is blocked or undersized, so water runs off the roof continuously. Leak side: weeping outlet unions, damp slabs under the tank, hairline cracks at fittings. We diagnose which family you're in before quoting, because the fixes — and the rates — are different.
Hairline cracks at fittings weld or seal fine when the body is sound. A sun-brittle body doesn't take a patch, and we say replace instead of selling a seal that fails next month. Blocked overflow lines get cleared and re-sloped where the structure allows, so the next monsoon doesn't repeat the call.
"Sealant tape stops a tank weep for good."
Tape sticks to a dry, still seam— on a flexing tank wall it lifts in weeks and the weep returns.
Overflow running non-stop is a float, not a leak — the cheapest fix on this page, and the most ignored.
Cause
Floats stick open and overflow for weeks before anyone checks the bill; cracked fittings weep slowly.
How We Fix It
Trace the water to its source— overflow, seam or wall— then set the float, renew the union or seal the section.
Check your overflow pipe monthly. If water is constantly running, your float is stuck — and you're wasting money.
A stuck float keeps the fill valve open all night— the overflow hides the waste until the bill proves it.
A weep at the tank joint looks like condensation for weeks — dry the area, check again at night, and a real leak keeps coming.
What to Do Before We Arrive
- Run a dry cloth along the base and seam at night — a real weep keeps wetting the cloth, condensation does not.
- Shut the tank inlet valve — usually the ballcock on the wall — if water is actively leaking.
- Note the tank material — poly, fibreglass or concrete — the repair method differs for each.
- If you can, gauge the leak rate — a slow drip and a steady run need different fixes.
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