Holiday rentals in Mallorca: the water and drainage check to do before the season

In a holiday rental, a water fault isn't an inconvenience: it's a bad review, a compensated night and sometimes a cancelled booking in peak season. And the particular thing about Mallorca is that almost all of the risk is concentrated into the same ten weeks of the year — exactly when any intervention is hardest to fit in and most expensive to resolve.

That's why the pre-season check isn't a generic maintenance recommendation: it's the difference between planning a job calmly in May and having to resolve it on a Saturday in August with eight people in the house.

Why the season concentrates the emergencies

A villa that houses two or three people the rest of the year goes to eight or ten, with several showers a day, daily laundry, intensive cooking and water consumption that multiplies. At the same time, whoever is using the installation doesn't know it: they don't know the property has a septic tank, or that the stack is old, or what can and can't be flushed. And high temperatures accelerate any biological process in tanks and drains.

Add it up and the result is predictable: July and August concentrate the blockages, the smells and the water-quality problems in the island's holiday properties. Almost none of them appear out of nowhere; almost all of them had been giving warning beforehand.

The cistern and the tanks: first on the list

Many villas and country properties in Mallorca depend on a cistern or on storage tanks, and their condition determines the water for the whole house. Between October and May that water turns over very little: it sits for weeks, sediment settles at the bottom and, if the lid doesn't seal properly or light gets in through a crack, algae and biofilm are encouraged. When the first booking arrives and consumption jumps, all that sediment is stirred up at once.

That makes storage the most profitable pre-season check: emptying, sediment removal, cleaning and disinfecting the walls, and checking lids, seals and ventilation. That's what a thorough cistern clean or water tank clean covers. To arrive with the groundwork done, the checklist for preparing your tank before cleaning saves time on the day, and the guide to water quality in domestic cisterns explains which parameters are worth watching.

Drains and stacks: the wear of intensive occupancy

The second front is the drains. At full occupancy, a pipe that runs marginally the rest of the year stops running marginally and starts blocking. Concentrated showering builds up hair and soap far faster, cooking for large groups generates considerably more grease, and wet wipes are common among guests who have no way of knowing what that installation tolerates.

A sensible check includes confirming that every drain empties normally — not just that it drains, but how fast — cleaning traps and strainers, checking terrace and pool-area gullies, and inspecting the chambers. If the property has had repeated blockages in previous seasons, or if it has a septic tank, it's worth running the buried section with a camera before the bookings start: far cheaper in May than in August.

Changeovers: the window for checking

During the season, the only useful moment to check anything is the changeover. It doesn't take a full inspection: three checks built into the cleaning protocol are enough. Run every tap and drain and confirm the water falls normally and without smells. Check the level and the appearance of the water in the tank. And note any minor sign — a slightly slower drain, a passing smell, a gurgling noise — instead of letting it go.

That log is more valuable than it looks. Most of the emergencies we attend at villas were preceded by a warning someone noticed two weeks earlier and didn't pass on because "it seemed like nothing". If your cleaning company records those signs, you have room to act between bookings rather than in the middle of a stay.

What to put in writing for guests

The preventive measure with the best cost-to-result ratio costs nothing: a short, clear notice in your guests' languages, in the bathroom and the kitchen. Only toilet paper down the toilet, wipes in the bin, and no cooking oil down the sink. If the house has a septic tank, say so explicitly, because it changes how guests treat it entirely.

Adding a line to the welcome guide and a contact number for water incidents completes the system. A guest who knows who to tell when a drain runs slow is handing you the chance to fix it before it becomes a problem. You can draw on the article about what not to flush down the toilet or sink when writing the notice.

What a breakdown in August costs

It's worth putting rough numbers to the decision. A scheduled spring check and clean is planned work, in normal hours, at a fixed price. An in-season emergency means an immediate call-out, often at the weekend or overnight, and to that you add what never shows on the invoice: the guest compensation, the review, the possible cancellation of the next booking and the blocked dates if the house can't be occupied.

At Tuberías y Aljibes we've spent more than fourteen years looking after holiday properties across Mallorca, from Pollença and Alcúdia to Calvià and Santanyí, and the pattern repeats season after season: owners who check in spring barely call us in August. If you manage a villa or a tourist apartment and haven't done the check yet, get in touch and we'll organise it before the pressure of the season starts.