Advance Apex Code

[bqq100]

I'm preparing to switch from kalk to 2 part using my inexpensive, but fast dosing pumps (~21ml/min). Since my need for 2 part is pretty small I need to have fine control of the amount of time the dosers are on.  I'm hoping a Apex guru can double check that the code will do what I expect it to do.

 

This is what I want the code to do:

Every 4 hours from 2AM to 10PM dose for 20 seconds

Every day at 11:15PM dose for 6 seconds

Every Saturday at 1:15AM dose for 6 seconds

 

For a week, that should give me an average of 106.85 seconds per day.

 

Fallback OFF 
OSC 015:00/000:06/044:54 Then ON 
If Time 01:00 to 23:59 Then OFF 
If DoW SMTWTF- Then OFF 
OSC 015:00/000:06/044:54 Then ON 
If Time 00:00 to 22:59 Then OFF 
OSC 090:00/000:20/149:50 Then ON 
If Time 22:00 to 02:00 Then OFF

Note: I know I can also use virtual outlets to do this, but I would like to minimize them if possible.

[Orion]

I would stop right there and get the slow dosing pumps - 1.1ml/min. I don't think your dosing pumps will last being turned on and off so quickly like that. They just are not made for it.

[Orion]

Not to mention you'll get a much more accurate dose with the slow pumps

[bqq100]

I would stop right there and get the slow dosing pumps - 1.1ml/min. I don't think your dosing pumps will last being turned on and off so quickly like that. They just are not made for it.

I don't agree with this.  I think number of on/off cycles would be the primary factor, and that's determined by the number of doses per day you choose to do.  In fact being on for a shorter period of time (within reason) should be better for the motor since there will be less heat buildup. 

 

Not to mention you'll get a much more accurate dose with the slow pumps

Agreed, but as long as the error is predictable (fixed or normally distributed) it should all average out over a longer period of time.  If I can save $170 while keeping the alkalinity from drifting more than .3 dkh over the course of a month, I'll be happy as a clam.