Beer pump advice

[nickbfc]

Hello, I have just got another pump for my bar and there are 2 tubes and a cable , which is the tube for the beer line and what is the other for TIA

 

[RoomWithABrew]

Put some liquid down the tap and the pipe it comes out of is the liquid pipe.
TIA to me means Transient Ischaemic Attack a less than 24 hour duration stroke. Please define your TLA and also what do you mean by pump? I have hand pumps or beer engines is this what you are describing? Mare pictures would help.

 

[nickbfc]

Put some liquid down the tap and the pipe it comes out of is the liquid pipe.
TIA to me means Transient Ischaemic Attack a less than 24 hour duration stroke. Please define your TLA and also what do you mean by pump? I have hand pumps or beer engines is this what you are describing? Mare pictures would help.

In my world TIA is thanks in advance and probably to most people . The pump is a Erdinger pump attached as you can see

 

[RoomWithABrew]

Thank you for the extra info. Could be that the narrow line is for the beer test either by putting liquid up the narrow line or down the tap.
The other lines bigger ones might be for cooling of the tower to keep the beer cool on the way to the tap.

Someone will know for sure though but these are my best guesses.

 

[RoomWithABrew]

Any updates on this conundrum? Did you get a chance to test the lines and diagnose what each one did?

 

[nickbfc]

No I didn’t as I’ve been working but will let you know when I do . Thanks for asking

 

[RoomWithABrew]

Standing by.