Return Pump and Float Switches

[cosmith71]

I have ATO low set as my topoff control. It turns on a AquaLifter whenever the level drops.

I have the Hi ATO as a cutoff for my return pump. Currently, if the level drops, the return pump switches off until the switch is lifted again.

What I would like is for the return pump to shut off when the sump level is low, but not switch back on until the topoff switch is activated. I can't seem to figure out the logic.

Any ideas?

--Colin

[rimai]

If I understood correctly what you want, try this:

Code: Select all

if (ReefAngel.HighATO.IsActive()) ReefAngel.Relay.Off(Port8);
if (!ReefAngel.HighATO.IsActive() && ReefAngel.Relay.Status(Port1)) ReefAngel.Relay.On(Port8);

[cosmith71]

Roberto,

That's almost it. This ended up working:

Code: Select all

if (!ReefAngel.HighATO.IsActive()) ReefAngel.Relay.Off(Port4);
if (ReefAngel.HighATO.IsActive() && !ReefAngel.RelayStatus(Port6)) ReefAngel.Relay.On(Port4);

Which I modified to this:

Code: Select all

if (!ReefAngel.HighATO.IsActive()) ReefAngel.Relay.Off(Port4);
if (ReefAngel.HighATO.IsActive() && !ReefAngel.LowATO.IsActive()) ReefAngel.Relay.On(Port4);

When I do water changes, I pump the new water into my sump. My return pump always outpaces the pump I use from my water change receptacle and I end up having to switch the return pump off and on until I'm done pumping the new water in. This way I can override the ATO to off, and start pumping the new water in without worrying about the sump going dry.

Thanks for the help!

--Colin