The vacuum pump on my vacuum sealer goes for $10,000 by itself.It sounds like your heat bar may not be completely melting the bag. is there any thermal or time adjustment for the sealing portion?I have one of those sinbo snorkel seals and like it, there's an adjustment for the heat time it puts on the bag after vacuuming. I use the sealer all the time. If I had the $ I'd get a SVP-15 chamber vac, those things are sweeeeeeeeeettt, I've been trolling ebay and other places but haven't found even a used one for less than $500
