Ah right ok! Il straighten it out best I can (its very bendy atm) then see how it sounds .cheers mateyIts the interior of the venting tube or ducting that makes the noise as air is pushed around corners, or over kinks, avoid bends and kinks, aim the outlet under the house, go down not up ...lol
Sweet il do that tomorrow. They do it a b n q for pretty cheapIs this flexible ducting we're talking about? There's insulated which is much quieter. Even if you just add a piece at the end it will go a long way towards muffling that sound, which is coming out the end of the duct, after all, just like a trumpet. I have a six inch fan at the end of my exhaust and the noise was cut tremendously when I added insulated ducting for a short length after the fan.