Air in Harcopak tank

[PlumsteadGirl]

Hi, I have Harcopak water tanks fitted in my house. When I turn the heating on, roughly every 30 secs there is the sound of air in the hot water tank/pipes surrounding it. This started following a visit from a Gas Engineer, who I called out to repair my boiler, but who was insistent the problem was not with the boiler, but with my 'sluggish' pipes. I don't know whether he touched something that is now causing this problem. Anyway my question is, how do I bleed the system to get rid of the air? Bleeding the radiators does not seem to be having any effect. I have included a photo of my Harcopak pipe work, so hopefully someone can point me in the right direction.

Harcopak pipes

• PlumsteadGirl
• 16 Feb 2009
• 1

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[swbjackson]

He may have turned the pump speed up.

 

[clf-gas]

View media item 8672

 

[PlumsteadGirl]

Thank you both for your help/advice.

The heating engineer turned the pump speed up 3 from 2, because of my 'sluggish' system. Before I bleed the tank would you suggest that I turn the pump speed back down to 2?

 

[PlumsteadGirl]

Just thought I would let you know, I turned the pump speed back down to 2, and the noise has stopped. I tried bleeding the system, but no air was released.

Once again thank you for your help Mike and clf-gas.