Getting updated reef-pi code from JFReyes

[JFReyes]

Thank you,
John

John:

Thank you for your feedback. It did not occur to me to add a time delay upon boot. Could you expand on its use case? Seems that the required code changes would be in the same source files as the stay-off-on-boot feature.

Thanks,

Hello,

When the system is off the sump level rises with no return pump running. When everything turns back on at once the skimmer can overflow due to the high water level in the sump until the return pump has a chance to bring it back to normal.

Thanks again!
John

Hi again:

I get it now. I don't have a sump (my equipment is all HOB) so I couldn't visualize this scenario. However, I would be concerned about using a timed start though. Since people have different types and sizes of pumps in their sumps, wouldn't a float switch in the sump work better? A timed start would require "calibration" in the sense that one would have to measure the time it takes (which could be long) for the pump to push enough water so the skimmer doesn't overflow, then enter it into the application. Another complication would be how to handle the timed start itself in the code because one doesn't want to stall the bootup process waiting for a timer; perhaps spawning a cron job could work.

On the other hand with a float switch, the skimmer could be set to stay off at boot and if the float is set up as a sensor then the application could be triggered to turn it on when the water level is ok.

Or maybe a combination of both approaches.

It all seems like a good idea so I'll keep analyzing it but suggestions are welcome.

Thanks,