Repairs to a pressure washer hose

Bob Minchin

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Jun 19, 2016, 11:45:11 AM6/19/16

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The hose on my Bosch AHR150 pressure washer has a couple of pin holes
with ensuing jets about 8 feet, always in undesirable directions and the
pressure loss keeps the pump cycling every few seconds.
I can use some self amalgamating tape to turn the jets into a simple
leak (but that will never hold the pressure but I'd like to fix it.
Replacements no longer available so I'm thinking of turning up some
joining pieces from brass or stainless with suitable annular barbs and
getting some double eared O clamps to crimp on the hose.

The machine is in good condition and claims 150 Bar. (2250 PSI)

Anyone done this successfully or am I wasting my time at these pressures?

newshound

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Jun 19, 2016, 1:08:44 PM6/19/16

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Not done exactly that, but I made up an adaptor once to clamp the spigot
with an O ring into a matching hole using stepped fingers bolted into
place. Details are irrelevant, but it needed careful fettling of parts
so that the clamps were effective. As you obviously know, the forces on
the joining pieces will be large so you need very mechanically sound
fittings.

I think the limitation in your case might be the double eared O clamps.
They are only retaining a few bar on things like LPG cylinders, etc.

It might be worth looking for a company which makes custom hydraulic
hoses, who will have proper heavy duty crimps in every possible size,
and the hardware to fix them. I don't think they would charge silly
money to crimp to your joining pieces. They might even have suitable
replacement hose which they could fit to your existing fittings, or
perhaps ready made joining pieces.

Andy Burns

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Jun 19, 2016, 1:35:17 PM6/19/16

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Bob Minchin wrote:

> The hose on my Bosch AHR150 pressure washer has a couple of pin holes

If you can't repair it, get a replacement made by Qwashers, they appear
to have let their own domain lapse, so I'd give them a call

<http://stores.ebay.co.uk/qwashers>

I replaced my Nilfisk plastic hose that had a mind of its own, with a
rubber one that behaves itself, and an extra couple of meters was useful.

David Lang

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Jun 19, 2016, 3:51:33 PM6/19/16

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I'd agree. Most HPCs use a 22mm screw coupling which is pretty
standard. Most hydraulic hose companies will have them. If not, look
in YP or Google for pressure washer repair companies.

--
Dave - The Medway Handyman

newshound

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Jun 19, 2016, 4:06:46 PM6/19/16

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Useful link, thanks. See also relatively cheap repair part which might
be suitable for the OP

http://www.ebay.co.uk/itm/HIGH-PRESSURE-WASHER-JETWASH-HOSE-REUSABLE-ENDS-REPAIR-KIT-1-4-FEMALE-/180465140906?hash=item2a048f84aa

Bob Minchin

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Jun 19, 2016, 5:27:36 PM6/19/16

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Thanks for the links and advice chaps I've sent some emails Qwashers and
another outfit Cleantec

http://stores.ebay.co.uk/Cleantec-Online?_trksid=p2047675.l2563

Bob

Bob Minchin

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Jun 23, 2016, 9:09:39 AM6/23/16

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Problem now solved as I have ascertained that hoses for Karcher K series
pressure washers with a C clip retainer at the lance end are perfect
replacements for the Bosch AHR 1500 model
A new 10m rubber hose cost £30 delivered from Ebay vendor Directhose

http://www.ebay.co.uk/itm/131849576701?var=431197863702&ssPageName=STRK:MEWAX:IT

Bob