Recently while being a nimble cat on the rocks I stretched to far and ripped my back ul waders is it possible to somehow water tight sew them or salvage some how or just toss them

You can patch a small hole but if you ripped a seam I'd say they're toast.
Posted from my iPhone/Mobile device

I agree, but if a seam opened up, depending on the age of the waders, you may be able to return them for another pair.

If you can't fix it, get your new pair at Cabelas or LL Bean you will never have to buy another pair. LL Bean even sends you a paid return shipping label. All you will have to do is find a box. No questions asked.

still a good pair of boots

Not sure if this will help but I immediately thought of this.I found this shop online that does great repairs on wetsuits. No one around here could do what I needed fixed. Actually she is great, she replaced a zipper on my wetsuit and it is better than new. Reasonable prices, she is located in California though but shipping priority mail only cost me $10 and I had my wetsuit back in a week from the time I sent it to the time it was back at my house. Send her an email and see if she thinks she could fix it. Good Luck!

expresswetsuit.com