Alkatronic pump inner tubing replacement help

[newfly]

I bought the replacement tubing. Can’t figure out how to open the pump cover .

Can’t find any information online either

How do I open the blue dosing pump cover to get access to the tube?

 

[dangalang]

This video doesn't show how, but my guess is to try rotating the blue cover counter clockwise.

 

[newfly]

I tried rotating it . It won’t budge. I didn’t push too hard as I don’t want to break things

 

[derek_SR]

Why are you changing the tubing, and how long has your alkatronic been runing? It looks like your C-pump tubing has a bunch of black gunk in it which is kinda weird.

 

[newfly]

The hose counter shows 1200 . It start sending me warning msg after 800. I just reset the counter . I figure I waited long enough pass the due date

The gunk in C tube is weird as well. It’s the line for the acic reagent. I will probably replace that as well once I figure out the tube size

 

[derek_SR]

The hose counter shows 1200 . It start sending me warning msg after 800. I just reset the counter . I figure I waited long enough pass the due date

The gunk in C tube is weird as well. It’s the line for the acic reagent. I will probably replace that as well once I figure out the tube size

I have about 2200 tests on mine but haven’t yet replaced the internal pump hoses, although I’ve replaced all the others - my pump C hose actually cracked recently. It’s 1.6MM ID btw, just get it on Amazon