problem with boiler kicking in when cold taps turned off!

[gassafe]

You can delay the flow switch in an ecotec, might cure the surge from kicking the boiler in...

 

[brooklyn07]

Thanks forall your replies everyone.. The upstairs toilet was plumbed in yesterday and it didn't make the problem to away unfortunately.How would I delay the flow switch is this something I should be messing with or do I need to give up and call someone in...