Valliant Unvented 300l- Water constantly running through pipes

[query]

I have an unvented pressurized plumbing system (Valliant 300 l). It seems as though the water is constantly running excessively through the pipes from the water tank. It's not coming from the tundish side, i think its coming from the pressurised tank. What can be the cause? How can i verify this? Any recommendations? Thank you

 

[king of pipes]

Post some pictures please we need to see where the water is coming from ??? Kop

 

[SJB060685]

Your description is very vague to be honest. Could you elaborate more or share some pictures as mentioned above?

 

[query]

Post some pictures please we need to see where the water is coming from ??? Kop

Thanks for your response. There is no visible leakage. There seems to be a constant flow of water from the small pressure tank in the top corner of the pics. This is running through pipes and to the outside drain even when the taps are not on.
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Your description is very vague to be honest. Could you elaborate more or share some pictures as mentioned above?

Ive posted some pictures above in response to King of pipes- thanks for your response!

 

[SJB060685]

The small tank you refer to is the potable water expansion vessel. By the looks of it the expansion relief valve does not terminate into D1 of the tundish, this is plumbed in wrong. I take it the drain point outside you mention is the termination from tundish? There are a number of reasons the expansion relief valve could be letting by but as this requires a G3 certification i can't legally explain to you these possibilities. This requires someone with the G3 qualification and to be honest is basic stuff

 

[king of pipes]

Although you have posted some pictures it's still not clear where you are loosing water ? does the pressure relief valve the low down red capped fitting terminate to a drain ? If so you will require a service call from a G3 engineer . Kop

 

[query]

The small tank you refer to is the potable water expansion vessel. By the looks of it the expansion relief valve does not terminate into D1 of the tundish, this is plumbed in wrong. I take it the drain point outside you mention is the termination from tundish? There are a number of reasons the expansion relief valve could be letting by but as this requires a G3 certification i can't legally explain to you these possibilities. This requires someone with the G3 qualification and to be honest is basic stuff

Thank you for your help- i'll get this looked into.
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Although you have posted some pictures it's still not clear where you are loosing water ? does the pressure relief valve the low down red capped fitting terminate to a drain ? If so you will require a service call from a G3 engineer . Kop

Thanks for your response, appreciate the assistance.