Apex DOS priming/calibration question?

[JonChicago]

Hi all. I just set up an Apex DOS. Followed the instructions exactly, overall it was fairly simply. My question comes in regards to after I calibrate. I used tap water as the instructions say, cleared the lines, and then into the graduated cylinder. Now that the pumps are calibrated what about the tap water thats in the tubing? Do I just put my intake tubes in my Ca and Alk and run them for a bit to clear out the water in the lines? Should I run the pumps now to clear the lines dry? I don't have the Ca or Alk yet to add to my DDR, just wanted to work on the pumps this evening.

 

[Roosterjack]

Not sure if it is the best way, but I had it dose a hefty amount into the original additive container then dialed it back to my intended dose.

I am sure someone far more knowledgeable than I just facepalmed at my method, but it worked.

 

[JonChicago]

Not sure if it is the best way, but I had it dose a hefty amount into the original additive container then dialed it back to my intended dose.

I am sure someone far more knowledgeable than I just facepalmed at my method, but it worked.

Yea I had thought about just waiting til I get the additives but was to excited for all my new eqiupment to wait. Got a Trident as well so spent the better part of today working on that. And a new fuge light after I knocked it in the sump haha

 

[Roosterjack]

Enjoy that unicorn! Jealousy!

 

[landlubber]

I would just pull the input/output lines off at the head, blow them through and reconnect them.

 

[Tastee]

When I calibrated mine prior to connecting to my dosing chambers I just left an air bubble in the line at the end connected to the dosing chamber. I then just ran the primer emptying the water into a jug until that air bubble had passed through the dosing line all the way to the end - what was ahead of the air bubble was water and what was behind was the dosing fluid. If you prime with RO you could simply empty the RO directly into the tank. It will just raise your sump level by a few Ml which will then evaporate.

 

[Sabellafella]

I clean my lines out every month with a bit of citric acid solution. I just empty them out and re prime them with my chemicals

 

[Waters]

I always calibrate with whatever I am using....whether it be salt water or CA/ALK. Really no reason to calibrate with tap water. Whatever ALK/CA you use that ends up in the measurement cylinder can be poured back into your dosing container.

 

[Gabaghoul]

Quick question to add about calibration. In the case of calibration for auto water change - If my dosing containers are different distances away - Saltwater reservoir is 20 feet away, sink for removed water is 10 feet away, what is the preferred method of calibration?

 

[landlubber]

Quick question to add about calibration. In the case of calibration for auto water change - If my dosing containers are different distances away - Saltwater reservoir is 20 feet away, sink for removed water is 10 feet away, what is the preferred method of calibration?

I personally haven't had to do this as my lines are similar length but to me and unless i'm understanding this wrong the process is still the same.
i'd individually run the lines so they are completely full of saltwater and then run the doser to push all the air out catching it in a pail/cup instead of letting fall into your tank. Once they're full calibrate.
The volume in the lines is really the only variable you're trying to stay on top of.