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Hey Toney.

I'm not sure what you have but on both my machines I have an inline filter /upstream injector in it's place, If it were mine I would replace it with an inline.
 
Its a thermal relief valve and I just replaced mine yesterday. They shouldn't leak at all unless the pump over heats. I would just replace it. Just unscrew it and screw a new one on. Don't forget the teflon tape. Mine cost $19.95 but I bought it locally which always costs more.
 
Exterior Attack PW said:
Its a thermal relief valve and I just replaced mine yesterday. They shouldn't leak at all unless the pump over heats. I would just replace it. Just unscrew it and screw a new one on. Don't forget the teflon tape. Mine cost $19.95 but I bought it locally which always costs more.
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Why would the pump overheat? I thought that was part of the unloaders job.
 
When the same water runs through the unloader back to the pump over and over while your not spraying it gets hotter. I always prefer to have a float tank feeding the pump and send the water back there when your not spraying to avoid heating up.
 
If your not spraying for 2 minutes you have two choices in my opinion. Turn your machine off or disconnect your wand or surface cleaner and open up your ball valve slightly to flow water. If your not flowing water your pump will heat up. My thermal releif valve was leaking when my machine was on and off. I just replaced it. You dont want to damage your pump. Its expensive to replace. Just my .02
 
Thats why you run a hose off your unloader back to the tank, this way fresh water is always running thru your pump.

Doing this will save your pumps life...
 
The unloader just relieves the bind off your equipment.It unloads so your engine is basically under no load.When you pull the trigger,the machine and pump go back to work pumping the water.The pressure is produced at the tip in the gun the pump pumps the same amount all the time.

Think of that relif as a thermostat when the temp get up it opens to the ground to save your pump.I have a return line on mine that relieves back into the supply line but even that has limits as it will increase the pressure in the supply line and could cause it to fail.
 
To me even a small float tank is better than hose feed, you avoid overheating and I just dont trust the hose - it gets kinked, turned off, its not putting out enough water and your pump is close to cavitating, a wad of crud shoots out the faucet and clogs the inlet etc.
 
The Cleaner said:
Thats why you run a hose off your unloader back to the tank, this way fresh water is always running thru your pump.

Doing this will save your pumps life...
Click to expand...

I already have that and I only run out of the tank, never from the tap. And there was still half a tank of water left so the pressure into the pump should have been good. I just cleaned the inlet screen yesterday.
See the pics.
 

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tonyshelton said:
I already have that and I only run out of the tank, never from the tap. And there was still half a tank of water left so the pressure into the pump should have been good. I just cleaned the inlet screen yesterday.
See the pics.
Click to expand...


Then you just have a bad relief valve, they do go bad, no biggie just replace it and all should be good to go. Or just plug it and dont worry about it.

If you have the water by passed into your tank off the unloader, you dont need that relife valve.
 
The garden hose threw me off. Lose the relief valve and all that other stuff. Run a nice fat braided pvc right into the pump or use a smooth sweep elbow if you need to - the easier the intake 'breathes' the better. The guy at general really made a point about smooth flow into the pump - no square brass elbows etc.
 
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