Salt creep in dosing tubing

[arvind]

I use a dosing tubing for automatic water change. I left the pump off for couple of days because I had to replace the doser head (it's an Apex DOS). The salt water replenishing tube has collected some salt deposits due to which it is not pushing water. Is there anyway I can remove the salt creep without having to replace the tube?

The AWC is running from basement to first floor, it is just too much work for me to replace the tube. This situation could happen again in the future so would like a better method to manage it.

 

[blaxsun]

What about reversing the flow through the tube with some RO water?

 

[JohnGurley]

Citric acid and water solution works well. I also hook my
RODI booster pump to the saltwater line when cleaning it. Works like a charm and have set maintenance reminder on Apex to clean the line every 2 months.