Quick update: No more chirping noises, I think that problem is fixed.
One problem though, the cheap plastic pipe which goes into the bottom of the silicone T shaped pipe I replaced has split where it goes into my new silicone pipe!
Is there an aftermarket pipe I should look into getting to replace it? or does anyone else have experience with this pipe breaking?
Also, I still have a slight wooshing air sound as if there might be another air leak somewhere else? Is the pancake pipe a suspect? (Ive checked all the pipes on the top of the bay and they are fine). whats the best way to get a peak at the pancake?
Ger