Split garden hose: replace or repair the leak

A split garden hose: replace or repair is the decision when a drip crosses the patio, the spray gun will not stop, or an expandable hose loses pressure. Where the water escapes matters more than how much you can see. A washer may cost very little. A bulging inner tube, or a second split near an old repair, is a reason to retire the hose.

In short

Replace the hose when the wall is splitting, bulging, perished or leaking in several places, especially near an earlier repair. If the pipe is sound, repair only the washer, connector or spray gun. Turn the tap off, release the pressure and test one part at a time. Do not leave a damaged hose pressurised.

Find the source before you replace the hose

Water runs along a hose and drips from the lowest point, so the wettest spot is not always the failure. Dry the tap, connector, pipe and gun, lay the hose out without sharp bends, and open the tap gradually. Watch the tap joint, then the pipe, then the gun. Keep your hands off a visible bulge: pressure can open it further.

Check the tap connection, the connector, the hose and the spray gun separately. A drip at the threaded adaptor points to the washer, thread or seating face. Water where the pipe enters a connector may mean a loose hose, a cracked collar or a split under the fitting. Fine spray, a damp blister or a soft lump is the hose itself. Fit a sound gun if you have one. If that shuts off and the pipe stays dry, the original gun is the fault. The same idea works at the tap with a sound connector and the right washer. Use our spray hose comparison only after the set is beyond repair.

Do not tighten every joint as hard as you can. Plastic threads crack, and a fitting started at an angle can cross-thread. Hand-tight is enough. If it will not seat squarely, stop.

When a washer is enough

Start with the washer when water leaves a joint rather than the hose wall. Turn the tap off and squeeze the trigger to release pressure. Look for a flattened profile, a split edge, hard rubber, grit, or a twist. Clean the recess, then fit a washer of the right size. A spare washer does not mean every drip is harmless. The connector body and thread still have to be intact.

Reconnect by hand, open the water slowly and watch for a minute. Pull the hose gently sideways: a marginal seal can look dry until the joint moves. If the new washer stops the drip, leave the pipe alone. If water still escapes, look for a hairline crack, a distorted collar or damaged threads. Another washer will not cure a cracked body. You can often replace a removable connector on an ordinary hose. Cut the pipe back only when the maker allows it and enough sound material remains.

When the spray gun is the problem

A hose gun that will not shut off is not proof the hose has failed. Dirt, a corroded spring, a snapped clip or a worn seal can leave a dribble or full flow after you let go. Turn the tap off at once. Check the inlet washer before you blame the mechanism. A leak only at the joint may be that washer. Flow through the nozzle whenever the supply is on, with the trigger back in place, means replace or service the gun as the instructions say.

A metal body can cope better with knocks, but it still has seals and moving parts, and it does not strengthen a split pipe. A plastic gun can crack if water freezes inside it; replacing that gun is enough when the hose is sound. See metal versus plastic spray hoses for the trade-offs. Retest with the tap within reach and look along the whole pipe. A gun that would not shut off may have held pressure long enough to show a second weak point.

Why an expandable hose can be difficult to repair

An expandable hose leaking through its fabric cover is not the same job as a rubber or reinforced PVC hose. An elastic tube stretches inside the sleeve. A wet patch may be a pinhole, a tear or a detached tube, and water can travel under the fabric before it appears. A patch on the sleeve does not reach that break.

Cutting off a damaged end and refitting the gun only works if the maker designed that fitting to come off and go back on. Crimped, clamped or moulded ends often cannot. Cutting one can leave an inner tube you cannot contain once the hose expands. Read the instructions and any guarantee first. Use a compatible repair only on a removable connector, and check the tube for tears. If the end is permanent, the tube has detached, or the cover hides more than one leak, replace the hose. Empty it after use, keep it out of frost and sun, and do not leave it stretched on mains pressure.

Seven signs it is time to replace the hose

There is no fixed number of years a garden hose must last. Pressure, storage, dragging and frost all change the result. Replace the pipe when another repair looks poor value or unsafe.

1. A bulge or blister means the wall is not holding pressure evenly. Turn the water off. Do not puncture, squeeze or tape it.
2. Leaks in several places, or new damp spots when you bend the hose, point to wider deterioration.
3. A fresh split beside an old repair means the neighbouring material may be brittle. Cut back only if sound hose and refittable ends remain.
4. A cracked, sticky or badly perished surface leaves little material you can trust.
5. A torn or detached expandable inner tube is not held by the fabric sleeve. Do not clamp a non-serviceable end.
6. A connector that keeps blowing off, once assembly is correct, needs a new end if the hose no longer grips or a moulded fitting has come away.
7. A weep on a metered supply is not free. You pay for the water, so patching a failing pipe is a false economy.

One clean puncture in a still-supple conventional hose can take a proper compatible joiner. Ordinary adhesive tape is not a pressure repair: water tracks under it, and flexing breaks the bond. Test any permitted repair gradually, in the open, and look again over the next few uses.

When a leak needs urgent attention

Most hose faults stay outdoors, but direction and shut-off matter more than the size of the split. Isolate the supply if water sprays towards an air brick, a door, electrical equipment or the wall around the outside tap. Move portable electrical items only if you can do it without standing in water or touching wet equipment.

Call an appropriately qualified plumber if an indoor pipe is feeding the burst, the outside tap or its wall fixing moves, or you cannot shut the supply off. Do not force a cross-threaded adaptor with a spanner. If a serious mains leak cannot be isolated, contact your water company as well. Away from the building, turn the tap off, release pressure, disconnect the hose and drain it clear of a walkway. Photograph a failed moulded or crimped fitting if you may claim, then stop using it.

Make the next hose last longer

Empty the hose after use and coil it without tight kinks. A broad coil or reel is kinder than a sharp loop over a tap, nail or narrow hook. Keep it out of direct sun when you can, and store guns and expandable hoses where trapped water will not freeze. Disconnecting at the tap also stops you leaving the hose pressurised by mistake.

Do not pull the hose by the gun or drag a connector around a corner. Damage just behind the collar is easy to mistake for a loose washer. Move the coil, or use a longer hose, instead of keeping the pipe stretched. Keep it off sharp edges and do not drive over it. At the start of the season, seat the washers, start the threads squarely and uncoil the pipe before you open the tap. Match any new part to the hose size and the end design. An expandable hose may need the maker's own fitting.