Pump causing air in last rad?

[zanwan]

Had a call to look at a radiator (furthest rad on system) which needs to be bled pretty much once a week. The tenant said another plumber said the thing that was causing the air in the radiator was the pump, as the pump was too large/powerful for the system. He could not find any other cause for the radiator to be getting air so often.

Could a pump being too large for the system really cause this issue? If so, does the pump need to be replaced or can the pump be adjusted

 

[dextrous]

Look back at your notes/text for positioning of pumps within a system - you probably did this multiple choiice assessment during the LCS practical assignment. From this, see if you can work out the answer to your own question.

 

[zanwan]

Had a look through my notes, can;t really find anything that answers the question as in what may be causing air in that one (last) rad.

Any advice will be much appreciated.