Clean water alone rarely destroys a drive. What causes the damage is what the water leaves behind as it dries — minerals, salts and residue — and the corrosion that follows if power is applied while it is still damp. Which is why the two instincts everyone has, drying it out and testing it, are the two things that cause the harm.
$ bdr diagnose /dev/sda → Device: WD Elements (4 TB, USB) → Status: WATER DAMAGE — corrosion on board & contacts → Client: confidential · Wallingford OX10 $ bdr engineer-working → Decontamination: platters & internals cleaned → Donor board matched: from stock · 0 days wait → Imaging: 3.52 TB / 4.00 TB (88%) $ bdr verify → ✓ family_photos — 88,140 files → ✓ documents — 9,620 files → ✓ everything recoverable — saved
Rice does nothing useful. A hairdryer drives moisture further in and warps components. And powering a wet drive is what turns contamination into short circuits and electrolytic corrosion — the damage that follows is usually worse than the water itself.
Neither destroys the platters directly in most cases, which is why recovery is so often possible.
The advice that circulates is well meant and consistently harmful.
Leaving a drive to dry does not remove contamination — it concentrates it. Water evaporates and leaves behind the minerals, salts and residue it carried, deposited across the board and, if the enclosure was breached, on the platter surfaces. Those deposits are what a lab has to remove, and they are considerably harder to shift once dried than while still wet.
Heat makes it worse, warping components and driving moisture into places it had not reached. And the single most damaging action is applying power: a damp board short-circuits, and current through an electrolyte accelerates corrosion enormously. If a drive has been wet, the best thing you can do is seal it in a bag — damp — and get it to us quickly.
Time-sensitive work, because damage continues until it is stopped.
The drive is opened under filtered clean air and the internal state assessed. Nothing is connected to power until it is known to be safe.
Board and internals are cleaned to remove mineral, salt and soot residue — the actual cause of ongoing damage — using appropriate solvents rather than simple drying.
Where liquid reached the platters, surfaces are cleaned carefully. Residue left there would destroy the heads on the first spin-up.
Corroded boards are repaired or a donor fitted with the original ROM adaptives transferred, and damaged heads replaced from a matched donor.
A decontaminated drive is not a restored drive. It is cloned read-only straight away, because it may only tolerate one good read.
Clean-air and decontamination work carries committed costs.
A water or fire damaged drive is from £300 +VAT, confirmed in a written quote after a free 48-hour diagnostic. This work carries a 50% deposit, with the balance payable only on success.
Send it damp and sealed rather than dried, and send it quickly — corrosion does not pause. Full write-ups: a Maxtor salvaged from a burnt-out laptop.
Send us your device for a free diagnostic, and tell us a little about what happened — an engineer will review it and confirm your exact quote in writing before any work begins.
Getting your data back begins with getting the device to us. Pack it up safely, pop your contact details inside, and send it over — once we’ve run the free diagnostic, we’ll confirm your exact price in writing before any work starts.
Posting it? A tracked, insured service is what we’d recommend. Rather drop it in? You’re welcome Monday to Friday, 9am to 5:30pm — just package the device up as above first.
Want a bit more detail first? Fill in the form with more about your issue and an engineer will review it and send you a custom quote.
We’ll be in touch shortly. For anything urgent, call 01865 593000.
What people ask us most about water, flood and fire damaged drives.
No. Drying concentrates the contamination rather than removing it, leaving minerals and salts deposited across the board and platters — and those are far harder to remove once dried. Seal it in a bag while still damp and send it quickly.
No. Rice removes a little ambient moisture and does nothing about the mineral and salt residue that causes the actual damage. It also delays the recovery while corrosion continues, which makes the outcome worse.
This is the most damaging thing you can do. A damp board short-circuits, and current passing through an electrolyte accelerates corrosion enormously. The check is what usually turns a recoverable drive into a difficult one.
Frequently, yes. Platters tolerate more heat than people expect, and what usually kills the drive is melted electronics, a warped casing, and acidic smoke residue — all of which are addressable. Fire suppression water is often the bigger problem than the fire.
Genuinely urgent, unlike most recovery. Corrosion continues for as long as contamination sits on the components, and contaminated liquids like seawater or soft drinks are aggressive. Days matter here in a way they do not with a mechanical failure.
From £300 plus VAT for a single drive after a free 48-hour diagnostic and a written quote. Decontamination and clean-air work carries a 50% deposit, with the balance due only on a successful recovery.
A free written diagnostic, no fix no fee on most jobs, and a 10,000-part inventory standing behind every repair. The sooner it reaches us, the better — begin your recovery today.