Difficulty changing gyms! Help!

[GOtriSports]

So I just moved to Charleston SC to begin my semester of college. I started at the gym that college students get a membership to (included in our tuition). I ran in to a few problems right away and I was wondering if you all might be able to help me out!

1. They don't have a belt for me to do weighted dips with. I had been doing 3 sets x10 reps of dips with a 45 lb. plate hanging from me. Any advice on what I can do to to maybe replace the dips or a creative way to add weight without a belt?

2. No decline bench for me to do weighted decline sit-ups. Twice a week I usually do 3x15 sets of decline sit up holding a 45 lb. plate across my chest. I really enjoy doing decline sit ups and now I cannot. Any advice on something I can add to replace them or a creative way to do them without a decline bench?

3. This one I am a little unsure of. I seem have down down in the weight I am lifting on all the machines. Free weights have stayed the same but cable fly's and cable rows (and a few others) were unbelievably difficult. I had to decrease my fly's by 15 LBS! It was really disappointing. The machines at this gym are a little bit older and the movements just don't feel as smooth. Any idea why this might be happening?

 

[BulkMeUp]

1. I've done weighted dips by holding a db with my feet. I dont have a belt.

2. cant help with this one.

3.Changing gyms can effect the weights you move. At least it does for me. This is especially true when using machines.

 

[Gazhole]

Machines are all completely different, just adjust the weights accordingly.

I used a backpack for dips usually. aswell.