Problems with vacuum cups

Hello, I received the Best Extender V4.0 a week ago and have been trying it out, but I’m encountering a problem that I can’t solve. When I increase the tension, I lose pressure in the vacuum cup. I’ve tried various ways, but the pressure still gets lost after a few minutes. The Best Extender V4.0 comes with 3 cups, and I’ve tried them all, but I still can’t fix it. Any advice? Is anyone else experiencing this

First of all, use the smallest cup that you can squeeze your head into.

Secondly, it’s easy to get micro-tears in the vacuum sleeves. I’ve found that if you double-up (put a second vacuum sleeve over the first, so that you have an inner and outer layer), it will hold much better. You still may need to vacuum the air out every once in a while, but it’s a game changer.

That is very interesting, I will try it this afternoon and comment on the results. Thank you

If you like glans caps or toe caps, wear two. I was just about to post on my thread about it, after wasting my money on a deeper cup. Autoextender uses an inner and outer cylinder which locks together.

Oh, get you a leather hole puncher, and punch a lot of holes in the glans/toe caps, if it doesn’t have them.

Oh yeah. I forgot, I just remembered something that improves the connection with the cup and the sleeve. I just got some today, zipties. Be sure to use pliers, needle nose seems better, to pull the zip tie completely tight on the brim.

Forget what I said about doubling up on the glans cap, it doesn’t work. I don’t know if it’s because I’m using toe caps, instead of the actual glans caps. I’m previously trouble shooting the same problem, and to me, I’m waiting on Mb to make a small deep cup for his autoextender. I got his beta medium deep cup out of frustration. It’s a little too big, and I might try it without the inner cylinder. Oh, with regular cups, you have to make sure the wrapping doesn’t go past the cup, when you put the cup on.

Sorry again. Forget what I said about zipties too, they’ll rip your sleeves apart 😔. I should’ve just used my LG hanger rubber bands, on my Autoextender. I thought it wouldn’t conform to my cup well. I just done bought some sleeves, and ended up wasting money on them. Smh.