ATO and Kalkwasser with Apex Classic

[Mikeltee]

Hi,
I am adding a kalkwasser system to my ATO routine. I ran this setup a long time ago but forgot the programming. As I recall, I had a delay on the ATO to prevent dosing a certain amount of time after the stirring pump cycled. To start, I am going to stir 4 times a day for 60 seconds.

Here's my Kalk programming:
Fallback OFF
OSC 000:00/001:00/359:00 Then ON
If pH > 8.50 Then OFF

Heres my ATO programming:
Fallback OFF
Set OFF
If ATO-Lo OPEN Then ON
If ATO-Hi CLOSED Then OFF
When On > 005:00 Then OFF
Defer 000:10 Then ON
Defer 000:04 Then OFF
Min Time 060:00 Then OFF

What statement do I add to prevent my ATO from triggering after a stir and how long should I wait? The outlet is names Kalk.

Thanks

 

[Mikeltee]

I think that this will catch it if it tries to come on when stirring.

Fallback OFF
Set OFF
If ATO-Lo OPEN Then ON
If ATO-Hi CLOSED Then OFF
If ATO-ResLo OPEN Then OFF
When On > 005:00 Then OFF
If Output Kalk = ON Then OFF
Defer 005:00 Then ON
Defer 000:10 Then ON
Defer 000:04 Then OFF
Min Time 060:00 Then OFF

 

[Mikeltee]

I ended up enabling a virtual outlet for 9min after the pump stops the stir and used it as the condition to check for. Hopefully 10min is enough. I'll watch my pH and adjust accordingly:

--KalkPause Virtual Outlet--
Fallback OFF
OSC 000:00/010:00/350:00 Then ON

-- ATO --
Fallback OFF
Set OFF
If ATO-Lo OPEN Then ON
If ATO-Hi CLOSED Then OFF
If ATO-ResLo OPEN Then OFF
When On > 005:00 Then OFF
If Output KalkPause = ON Then OFF
Defer 000:10 Then ON
Defer 000:04 Then OFF
Min Time 060:00 Then OFF

 

[Mikeltee]

All of the above is wrong. This is right. The ATO turns on at the end of each hour which guarantees that the kalk stirrer will have been off at least 50 minutes. It took a minute to wrap my head around the OSC command. The Kalk Stirrer kicks on for 1 minute every 6 hours at the top of the hour. The ATO kicks on at the bottom of the hour every hour and then shuts off according to the assigned conditions:

-- ATO --
Fallback OFF
Set OFF
OSC 050:00/004:00/006:00 Then ON
If ATO-Res OPEN Then OFF
If pHCarx > 8.40 Then OFF
If ATO-Hi CLOSED Then OFF
When On > 005:00 Then OFF

--Kalk Stir--
Fallback OFF
OSC 000:00/001:00/359:00 Then ON
If pH > 8.30 Then OFF