Just far enough to make a seal. I don't force them all the way in. Maybe about 3/4“ or so. As the temperature drops, it helps to re-check them to make sure they're still tight and not leaking, as the cold makes them contract a bit.
I currently use this robotic vacuum cleaner: amzn.to/3Du1DCp Here's a video I made of it in action: ruclips.net/video/qkJR3Nqt8Qs/видео.html Hope it helps.
my black plugs for the hose intakes seem to be to big and will not push in how far should they go in
Just far enough to make a seal. I don't force them all the way in. Maybe about 3/4“ or so. As the temperature drops, it helps to re-check them to make sure they're still tight and not leaking, as the cold makes them contract a bit.
what kind of vacuum do you use?
I currently use this robotic vacuum cleaner:
amzn.to/3Du1DCp
Here's a video I made of it in action:
ruclips.net/video/qkJR3Nqt8Qs/видео.html
Hope it helps.