Hosepipe problem Hose lock

[Madrab]

The first one, on the second line, goes at the far end of your hose pipe. If you do that, it should prevent water escaping from the open end, even with the tap turned on, until something is plugged in to it.

That was the way he had it when he had the initial problem in post 1 with the aquastop 'red' connector plugged into the jet wash?? So there must have been an issue with it when plugged into the Karcher.

I have the HL Aquastop valves on mine and it won't run with the red valve on the tap end, so not sure what's going on there then. Works fine the other way around.

 

[pcaouolte]

From my Karcher pressure washer instructions:

ATTENTION
Hose coupling with Aquastop on the water connection
of the device
Damage to the pump
Never use a hose coupling with Aquastop on the water
connection of the device.

 

[RP06]

Oh because everyone else is saying aquastop goes on Pressure washer side and the one without aquastop goes on tap

"Yes, that connector can go on either end but you cant use the yellow/red connector @ the outside tap end, that one can only go on the end that the appliance/jet wash connects to as it's a one way valve inside."

 

[Harry Bloomfield]

Oh because everyone else is saying aquastop goes on Pressure washer side and the one without aquastop goes on tap

"Yes, that connector can go on either end but you cant use the yellow/red connector @ the outside tap end, that one can only go on the end that the appliance/jet wash connects to as it's a one way valve inside."

The whole point of the aquastop, is simply to shut the water off, if you unplug whatever is at the far end of the pipe. I cannot think why Karcher might insist that none is used with their pressure-washer, unless there is something odd about the male connection on it.

It is certainly true, that running a pressure-washer, with no flow of water through it, can damage it. The pump relies upon the water, to cool and lubricate it. My PW, auto stops, if it has water, and the lance trigger is released, due to a pressure switch, but if there is no water, there will be no pressure, and the motor will run continuously until the pump burns out.

 

[robinbanks]

I had one of these silly connectors, it was very fickle - solved it by pushing a screwdriver through it and breaking off the silly little internal valve - worked fine after that

You could have just swapped the hose round so the pressure from the tap served to push the valve open, rather than closed

Oh because everyone else is saying aquastop goes on Pressure washer side and the one without aquastop goes on tap

Normally, yes. That's because normally you want it to be the case that water shuts off when you disconnect the hose

The problem you can run into though, especially with pressure washers and other things that don't let water flow freely, is that there can be water already inside the machine, under pressure, plus water in the hose under pressure, and you have to be strong enough to overcome the water pressure when pushing the connector on. It's easy to underestimate just how hard you have to fight against mains water pressure; it's significantly to easier to turn the power off to the pressure washer, then pull the trigger to relieve all internal pressure inside the machine, and keep the trigger held while you plug the hose in. This way the water pressure in the hose has somewhere to go and you don't have to fight it so hard


Other things to consider with pressure washers; sometimes the thing you clip the hosepipe onto has a built in filter that can get clogged, starving the washer of water. If you don't have a filter it's also possible to get a bit of grit into the washer and down the lance, blocking the outlet from the nozzle. Better washers come with a small tool (a slim metal wire to poke with) to clear the nozzle.
If the machine is under pressure, release the pressure with the power off, then disconnect the nozzle end from the handle end (if it does) and manually. After this you should be able to poke it clear. Before running it again backwash the nozzle with the hosepipe so the same bit of grit doesn't immediately make its way back into the outlet jet

 

[Munroast]

You could have just swapped the hose round so the pressure from the tap served to push the valve open, rather than closed

obviously, but irritating when it got plugged in the wrong end - and on top of that it reduced flow, seemed the most pointless of inventions. far simpler to just take a pair of pliers and snip it off.

 

[Madrab]

From my Karcher pressure washer instructions:

ATTENTION
Hose coupling with Aquastop on the water connection
of the device
Damage to the pump
Never use a hose coupling with Aquastop on the water
connection of the device.

If that's what Karcher says then that's what needs to happen. Simples. Presumably because the valve can restrict the flow which the pressure washer doesn't like, time to get it off and just use 2 grey and yellow connectors.

Always best to read the MI before using anything.