opinions on my auto water changer design

  • We are currently upgrading MFK. thanks! -neo
details of the failure points and your new semi auto wc system?

I mean they don't always work because of a tank's location, as in your case. You can see details in my 190g thread, link in my sig...
 
LOL are you serious? What if the solenoid fails what if the pump fails what if the sun doesn't rise LOL

Yes I'm serious, are you? I don't think anybody with a shred of common sense would do what you're suggesting, and that is to drain excess water with a small tube that relies on a siphon with a small valve adjusted to the rate of the incoming fresh water. The whole idea is absurd, and is borderline trollish.
 
So what is your setup now with the float switch and pump. Water rises in the sump activates the float switch pumps water out. So when power goes out you have a shut off valve on the incoming water?

yes, exactly. the shut off valve is coming in the mail so that will be factored in.
 
So what is your setup now with the float switch and pump. Water rises in the sump activates the float switch pumps water out. So when power goes out you have a shut off valve on the incoming water?

Yeah, as you can see in the link I posted a few pages back, this is how it works:

1. Float valve in sump connected to drain pump.
2. When water level rises, it triggers the float valve which triggers the pump to drain the water.
3. Water feed line has a normally-closed solenoid, which only lets the water pass through if it has power.
4. If power goes out, solenoid closes and no water passes through, so no risk of flood.
5. The solenoid is also connected to a safety switch.
6. If the water goes past the float valve and touches the safety switch, it kills the power to the solenoid, which shuts off the flow of water.
 
Yeah, as you can see in the link I posted a few pages back, this is how it works:

1. Float valve in sump connected to drain pump.
2. When water level rises, it triggers the float valve which triggers the pump to drain the water.
3. Water feed line has a normally-closed solenoid, which only lets the water pass through if it has power.
4. If power goes out, solenoid closes and no water passes through, so no risk of flood.
5. The solenoid is also connected to a safety switch.
6. If the water goes past the float valve and touches the safety switch, it kills the power to the solenoid, which shuts off the flow of water.

ok seems like the only thing i'm missing is wiring the solenoid to a safety switch, where did you get your switch?
 
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