Water Bill Doubled Lanzarote? Hidden Leak Fix | Leakbusters

This is why a doubled bill often indicates a modest leak rather than a catastrophic burst. The tiered system amplifies even small losses disproportionately.

Three Common Culprits Behind a Sudden Doubling

1. The Silent Toilet Syphon

Toilet syphon failures are the single most common cause we encounter. The rubber diaphragm degrades in Lanzarote's hard desalinated water, allowing a constant trickle into the bowl. It runs silently, 24 hours a day, wasting 200–400 litres daily. Over 90 days, that's 18,000–36,000 litres — enough to catapult your bill into the highest pricing tier.

Quick test: Place a sheet of dry toilet paper against the inside back of the bowl at night. If it's wet by morning, your syphon is leaking.

2. Underground Supply Line Fractures

Lanzarote's volcanic substrate — layers of basalt and porous picón — shifts with temperature changes. Over time, this movement stresses buried supply pipes, especially at joints. Because the island has no water table, leaked water drains straight downward and never surfaces as a visible puddle. The only evidence is your meter spinning when every tap is off.

3. Aljibe Float Valve Failures

Many villas use an aljibe (water storage tank) that refills automatically from the mains via a float valve. When the valve sticks open or the float develops a crack, the tank overflows continuously through its safety drain. The water disappears silently and the mains supply runs non-stop, racking up consumption you never see or use.

The Four-Step Meter Test You Can Do Tonight

Before calling anyone, confirm whether you have an active leak:

If the numbers have changed, water is leaving your system somewhere. The rate of change gives us a clue about the size of the leak before we even arrive on site.

Why Professional Detection Pays for Itself

At Leakbusters Lanzarote, we locate the source using acoustic geophones, tracer gas, and thermal imaging. Every finding is confirmed with at least two independent technologies, pinpointing the problem to the centimetre. This precision means the repair is targeted — no speculative digging, no unnecessary tile removal, no guesswork.

Most clients recover the cost of our detection service within a single billing quarter through reduced water consumption. With our No Find, No Fee guarantee, you only pay if we locate the leak.

Stop Paying for Water You Never Used

A doubled bill is your plumbing system sending a distress signal. The sooner the leak is found, the sooner your consumption drops back to normal and your bills return to the standard bracket.

Contact Leakbusters Lanzarote for a free, no-obligation quote. We respond across the island, typically within 30–60 minutes.