If the pump is on, and the water is hot, the sensor valve closes, right? Isn't the pump trying to push water against a totally closed line?
1411953
This type of pump is designed to operate with zero flow, and it actually uses a little less electricity when it is not moving water. When the sensor valve closes, the pump does not move any water. When the sensor valve reopens, the pump moves water from the hot water line into the cold water line.
1411954
I thought the same thing, but I assume the pump has a pressure-sensitive internal by-pass valve that simply recirculates the water inside the pump until called upon to pump water into the water line. That's the way most constant run pumps work. I've had mine connected for over a year now, and it's worked great. What's amazed me more than anything is that you can't hear the pump running. It's so quiet, you actually have to feel it to verify that it's running, and even then there's so little vibration, you almost can't feel it.
619020
The switch is normally closed. The float lifts and opens (disconnects) the thermostat circuit if the water backs up in the drain pan or drain pipe.
1638591
No. I had to replace my sensor awhile back because I was getting hot water through the cold water tap. You need the sensor valve for it to work correctly.
831602
No, that is not the correct operation of the valve. The valve is normally closed when there is no power input to the valve and it opens when power is supplied to the valve.
1192294
As Rae said I also am not sure what you mean. However you pull and hold the trigger as you push forward (about as far as you can reach) then you release the trigger to stop the liquid flow and slowly pull back on the same track. There is a float in the dirty water tank which will stop the suction. When it does this you shut it off till it drops. The tank is probably full but it could do this if youjerk the machine even when it still has more room.
1605049
Yes, if you can be sure that the water will never be sudsy. If there are suds, they can form a "bridge" between the sensor and discharge pipe from the pit that will keep the sensor triggered even though the water may completely pumped out. A better solution would be the HC5000 Sewage Pump Switch, which is designed specifically for these types of applications.
1068724
Make sure the sensor is dry, then press the OPEN button. This will open the water valve and restore water supply. You can also press the close button at any time to close the valve even if there is no water leak.
1986969
It has a built in temperature sensor that turns it off when the hot water reaches it.
2091371
I suppose it depends on just how huge the sink is, but, in my experience yes. One thing I have noticed is that the water flow is much stronger when triggered by the sensor than if you manually turn the water on with the handle on the side. I find this not a major problem, it's just really odd. I'd prefer an equal spray pressure.
761532
I'm not sure - it is entirely closed so you can't see the water level when it's operational. I think the float was about an inch from the top to trigger it on, though. We never had a problem with overflow until the entire switch died.
332405
I believe that the way this one works is by sensing the presence of the minute electrical current or the lack thereof. The sensor must be set so that the pump runs at least 10 seconds. I am assuming that is enough time for the pump to discharge enough water and lower the level of the water in the pump sufficiently to allow the sensor to /not/ sense a current and therefore stop activating.
1208932
I am almost certain the answer is "no". It turns valves on and off, and has no way of sensing water pressure, etc.
902100
I did a little test to find the low spot that water will flow to around my washing machine and hot water heater by pouring a little water in the area where they are located. The water will pool in that low spot and that is where I placed the sensor. I just have it sitting on the floor in these low spots. I know it works because my wife was doing some hand wash in the sink which is right next to the washer and some water spilled on the floor. She was on the phone to me asking "how do I shut this thing off???". They work. Hope this help.
418764
No. When my furnace stop working, because the identical Wet Switch was sitting in a pan of water, the Wet Switch did not sound/alarm, the furnace merely failed to come on.
792700
It does have a float that turns it off when it has pumped the liquid out; so it only runs when the water level rises to the pre-set level in the pump reservoir. It also has a high level limit switch that cuts the furnace off if the pump should fail for some reason. That way, the furnace won't keep making condensate that could spill out in the house if something happens to the pump.
1906277
This is a pretty simple device, and I have not experienced anything like this. Assuming that your water supply has a constant pressure, I would suspect that the pump may be failing and is "locking up" intermittently. I would check and see that the hose from the water supply is not kinking and the hose to the nozzle is also not kinking, though either of these would be fairly conspicuous.i would think. The first one of these I bought failed completely after about 8 hours use, I returned it for a replacement and have had no problems with it.
1996350
This valve is normally close (when you energized it the valve open). I use it for water system and it works good.