Recent content by ggdowski

Those are essentially Gredia flow sensors. You can buy them on Amazon. You have to cut off the connector and add a connector that interfaces it to the Hydros. I have been running 3 of them for over a year on a Hydros...

I had one failure that was somewhat worse. I had an outlet somehow get stuck in the "on" position. It was indeed the outlet to my ATO pump. It ended up overflowing my sump. I somehow had turned off other warnings and had the "run if beyond max time" in the on position. It depleted my 100G...

That is why I interfaced the Milone water level sensor that provides a voltage that is proportional with water height. I can set the level of the water in my sump without moving the sensor.

I use the ATO pump I had from my APEX. I modified the cable and connected it to a 24V power adapter that is plugged into one of the programmable outlets. I had two of these from my previous system and I figured I might as well use them. Otherwise, they were just going to sit in a drawer forever.

Interesting. I'll have to give this a try. If I read this correctly, you are more finely controlling how much fleece is rolled out on a cycle. I think I can capture the effect on the ATO with my analog water level sensor.

I was going to ask the same question. How are you getting the other information.

I thought I would add a fun update to this. I started using twin KLIR 7" units on my sump. Those units function by using a level sensor to measure the build up of water behind the filter as they clog. When the water level gets high, the hydros advances the filter paper --- and the water...

I think what you are saying is that you could adjust the pump if something were blocking a return and the water level changed. Right now...that situation is an error situation and turns off my pump and sends me an email. You would need software modifications to readjust the return pump to...

I don't really know exactly. Except that I can blow on them and generate a signal that is 850G/hr. It doesn't take much to spin them. I just don't know how much friction or impedance they impart in fluid.

Unfortunately, I cannot edit my post above. I pasted in the wrong link for the connectors. The link points to GX16 mated 4pin connectors. Please be sure to order the GX12 mated 4pin connectors. They can be found here at amazon.

I was changing out my socks this morning and I now know what that slight increase was due to on April 11th in that graph. As the socks get clogged they start causing a slightly higher level of water above the socks (as expected). When I change those out, the water level in the sump goes up...

Hi Scuba John -- I took it off-line to show some of my student in my class as an example of how to calibrate a sensor. So I had to wait for the data to refill on the hydros -- because it only stores the last 5 days (I've been begging for this to be changed for a long time). Here is a picture...

I thought I would post one more picture to help illustrate the utility of the flow rate sensor. I can imagine that the figure of my display tank flow rate is not that impressive as it was constant for 5 days without any change at all. So you might be saying -- why bother? The other two...

Now it is time to hook it up. Here is what mine looks like. This is the return from my basement sump. I built two returns, but I am currently only using one. You can see the Gredia sensor installed on the left return. I have that connected to the hydros with this setup...

Let's get into the nitty gritty on this post. The first thing you will have to do is to cut off the connector on the Gredia flow sensor and prepare it to solder on a GX12 connector. I removed the white cover over the wires and replaced it with heat shrink tubing. That is optional. I placed...