Kayfun gurgle...

[mrHAIRYface]

Hi guys, I bottom fill my kfl+, do primer puffs and it works a storm but when it seems to get just before halfway, it starts to gurgle of which I then, push my switch a few times then take a pull and it stops gurgling until I then put it down and leave it for a while until I want another vape, kinda confused as it doesn't do this between completely full and just before halfway :s

 

[Mr.Motivapr]

Not had this issue but then I only top fill now as it's so much quicker