APEX ATO w/kalkwasser programmed during the night

redsfan · 04/20/2016, 07:07 PM

I'm setting up my ATO to run at night to help with pH swings. Here's the program I was thinking with 2 float switches:

Fallback OFF
Set OFF
If Time 10:00 to 04:00 Then OFF
If pH > 8.30 Then OFF
If Sw1 CLOSED Then ON
If Sw1 OPEN Then OFF
If Sw2 OPEN Then OFF

I added the Time and pH lines for the kalk, the program worked well without those lines for ATO.

Will this work? Thank you for any feedback!

RussM · 04/23/2016, 07:52 AM

Program statements are evaluated top to bottom, so the new statements will do nothing at all where you have them, because they are above the If Sw1 CLOSED Then ON statement. You also do not need the If Sw1 OPEN Then OFF line. Use this:

Fallback OFF
Set OFF
If Sw1 CLOSED Then ON
If Sw2 OPEN Then OFF
If Time 10:00 to 04:00 Then OFF
If pH > 8.30 Then OFF

vhuang168 · 04/25/2016, 08:30 PM

If sw1 is closed it will run no matter what time it is.

Nvm, Russ has you sorted out.

Sent from my iPhone using Tapatalk

redsfan · 04/29/2016, 09:46 PM

You guys are good, this program worked well however I didn't like how quickly my pH jumped at night 8.1 to 8.4 in 15 minutes. My sump/fug is where the dosing occurs is 100g and my pH meter is in my skimmer section post 135g tank...I've got a significant response delay which shut off kalk too late.

I've changed the program to dose Kalk 1 minute per hour for 5 hours, then run the program. We'll see how it goes....

THANK YOU!!

04/20/2016, 07:07 PM	#1
redsfan Registered Member Join Date: Jan 2016 Posts: 9	APEX ATO w/kalkwasser programmed during the night I'm setting up my ATO to run at night to help with pH swings. Here's the program I was thinking with 2 float switches: Fallback OFF Set OFF If Time 10:00 to 04:00 Then OFF If pH > 8.30 Then OFF If Sw1 CLOSED Then ON If Sw1 OPEN Then OFF If Sw2 OPEN Then OFF I added the Time and pH lines for the kalk, the program worked well without those lines for ATO. Will this work? Thank you for any feedback!

04/25/2016, 08:30 PM	#3
vhuang168 Registered Member Join Date: Feb 2015 Location: San Jose, CA Posts: 2,136	APEX ATO w/kalkwasser programmed during the night If sw1 is closed it will run no matter what time it is. Nvm, Russ has you sorted out. Sent from my iPhone using Tapatalk __________________ Vincent 40g custom AIO --> DSA190Pro

04/23/2016, 07:52 AM	#2
RussM Registered Member Join Date: Jan 2007 Location: El Cajon, CA Posts: 7,818	Program statements are evaluated top to bottom, so the new statements will do nothing at all where you have them, because they are above the If Sw1 CLOSED Then ON statement. You also do not need the If Sw1 OPEN Then OFF line. Use this: Fallback OFF Set OFF If Sw1 CLOSED Then ON If Sw2 OPEN Then OFF If Time 10:00 to 04:00 Then OFF If pH > 8.30 Then OFF

04/29/2016, 09:46 PM	#4
redsfan Registered Member Join Date: Jan 2016 Posts: 9	You guys are good, this program worked well however I didn't like how quickly my pH jumped at night 8.1 to 8.4 in 15 minutes. My sump/fug is where the dosing occurs is 100g and my pH meter is in my skimmer section post 135g tank...I've got a significant response delay which shut off kalk too late. I've changed the program to dose Kalk 1 minute per hour for 5 hours, then run the program. We'll see how it goes.... THANK YOU!!