How to Fix a Pressure Washer Hose (2026)
Cut out the damaged section of a pressure washer hose and join the sound ends with a brass barb splicer and hose clamps, then check the joint for leaks before the next wash.
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A pressure washer hose that sprays from a split or a pinhole turns wash day into a mess, with water pooling around your shoes and pressure dropping at the gun. This guide explains how to fix a pressure washer hose by cutting out the damaged section and joining the sound ends with a brass barb splicer and hose clamps.
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Below: how to find the leak, how to cut and splice the hose, the fittings that do the job, and answers to common questions.
Ailbiuko 26PCS Brass Hose Barb Fittings Splicer
A 26-piece brass barb splicer kit with 52 stainless steel hose clamps, covering hose sizes from 3/16 inch to 5/8 inch for air, fuel, water and oil hose.
Pros
- 26 splicers and 52 clamps cover hose from 3/16 to 5/8 inch
- Brass splicers with stainless steel clamps for a firm, leakproof connection
- Sizes in the kit suit air, fuel, water and oil hose
- Clamps in 8-12 mm, 9-16 mm and 13-19 mm ranges
Cons
- No warranty term is stated
- Only 2 splicers in the largest 5/8 inch size
- No stated pressure rating
- Uneven counts across sizes: 6 of the small sizes, 4 of the mid sizes, 2 of the largest
KOOTANS 32PCS Brass Hose Barb Fittings Barb
A 32-piece brass barb splicer kit with 46 stainless steel pipe clamps in five sizes from 3/16 inch to 1/2 inch, made from CA360 forged brass.
Pros
- 32 splicers across five sizes from 3/16 to 1/2 inch
- CA360 forged brass with stainless steel clamps
- Barb ends are smooth without burrs, per the listing
- Suits water, fuel, air, coolant and vacuum lines
Cons
- No warranty term is stated
- No 5/8 inch size in the kit
- Clamp sizes are not stated
- No stated pressure rating
Da by 3 pcs 1/4"(6mm) Brass Barb Splicer Mender
A 3-piece brass barb splicer kit with 6 stainless steel pipe clamps, sized for 6 mm (1/4 inch) inner diameter hose for water, fuel and air.
Pros
- Brass splicers with 304 stainless steel clamps that will not rust
- Sized for 6 mm (1/4 inch) inner diameter hose
- Clamps create a tight seal on flexible or semi-rigid hose
- Simple kit for a single repair
Cons
- Only one size: 6 mm (1/4 inch)
- Only 3 splicers and 6 clamps in the pack
- No warranty term is stated
- No stated pressure rating
How to Fix a Pressure Washer Hose: Find the Leak First
Start with the washer off and the pressure released, then run water through the hose and watch where it escapes. A pinhole shows as a fine spray, a split shows as a jet, and a worn spot shows as a bulge or a soft patch under your fingers. Mark the damaged section with tape, leaving sound hose on each side for the splice to grip.
If the damage sits right at a fitting or the hose is cracked along its length, a splice will not hold: the whole hose needs replacing. A splice suits a local cut, nick or pinhole in an otherwise sound hose.
Cut, Splice and Clamp: the Repair in Order
Wear eye protection before cutting hose or running the washer, and never point the gun at people or pets. Cut the damaged section out with a sharp blade, keeping the cut square. Measure the hose inner diameter and pick a splicer that matches it: one that is too small slips out under pressure, and one that is too large will not seat in the hose.
Slide a hose clamp over each hose end, then push each end over a barb end until the hose covers the barbs. Slide each clamp over the barbed section and tighten it until the hose grips the barb with no gap showing. Reconnect the hose, turn the water on with the gun pointed at the ground, and watch the joint, then run the washer and watch the joint again at working pressure. A joint that stays dry at working pressure means the repair holds, and any weep means the clamp needs another turn or the splicer size is wrong. None of the kits in this guide states a pressure rating, so check the rating of the kit you use against your washer’s working pressure, and replace the hose instead if the kit states no rating for that pressure.
Match the Splicer to Your Hose
The kits below cover hose from 3/16 inch to 5/8 inch. Check the size printed on the hose or measure the bore, then pick the kit that holds that size.
| Kit | Sizes included | Clamps included |
|---|---|---|
| Ailbiuko Splicer 26-Pack | 3/16, 1/4, 5/16, 3/8, 1/2, 5/8 inch | 52 |
| KOOTANS Splicer 32-Pack | 3/16, 1/4, 5/16, 3/8, 1/2 inch | 46 |
| Da by Barb Splicer 3-Pack | 1/4 inch | 6 |
The Fittings That Fix a Pressure Washer Hose
Each kit below holds the brass barb splicer and clamps the splice step above needs, matched to the hose size you measured.
Keep electric pressure washers on a GFCI outlet, never point the wand at people or pets, wear eye protection with polishers and chemicals, and read the label before mixing any cleaning products. Read our Safety Disclaimer.
FAQ: garage tools
Can you fix a pressure washer hose instead of replacing it?
Yes, when the damage is local: a pinhole, a nick or a short split in an otherwise sound hose. Cut out the damaged section and join the sound ends with a brass barb splicer and a clamp on each end. Replace the hose when the damage sits at a fitting or the hose is cracked along its length.
What size barb splicer fits the hose?
The splicer must match the hose inner diameter. Measure the bore or read the size printed on the hose: the kits in this guide cover 3/16, 1/4, 5/16, 3/8, 1/2 and 5/8 inch between them.
Does each end of the splice need a clamp?
Yes. Each hose end gets a clamp over the barbed section, tightened until the hose grips the barb with no gap showing. A clamp on one end only leaves the other end free to slip off.
Will a spliced hose leak?
A splice with the right size and tight clamps should hold dry, as long as the kit is rated for your washer’s working pressure. Check the joint with the washer running before the next wash: any weep means the clamp needs tightening or the splicer size is wrong.
Can a barb splicer join two hoses of different sizes?
Not with the splicers in these kits: both ends of each one join hoses of the same diameter, so the two hose ends must match. Use the size that fits both ends, or replace the hose if the sizes differ.
Related: the air hose repair kit guide, the best car wash pressure washer gun and the best car detailing kit under 40.
