Brinsea ovation 28 ex humidity issues - any suggestions?

[Pork Pie]

got off the phone with Brinsea again.   The guy told me that there may be tiny pinholes in my tubing.  I changed tubing and it looks like the unit is operating.   I asked him about sucking (as I did try this last night) and he said that that shouldn't be needed.   Fingers crossed this continues to work.  Thanks for your feedback.    

Good news - hope it works out for you