So, I have a 3 year old Ascend from Bass Pro and it's managed to get a 3/4" hairline crack in the hull and now leaks a little.  This is my 1st kayak and I'm asking for information on how to repair this.  Any tips?

What's the warranty on those boats because my first course of action would be see if it is a warranty item as most hull cracks would be as long as they aren't due to negligence on your part.

 

If it isn't, there are plenty of youtube videos on preparing a crack using heat to basically melt it back together or fillet back up with plastic you may have from cutting holes to mount things on your boat.

Here are a couple links that might be useful.

 

http://www.perceptionkayaks.com/sites/default/files/images/products/Polyethylene_Repair_Guide.pdf

 

http://www.instructables.com/id/Fixing-a-plastic-polyethylene-kayak-with-a-hole-/

 

And a patch kit.

 

http://www.nrs.com/product/37980.01/patchnrepair-4-x-6-repair-patch?utm_campaign=shop_comp&utm_source=google&utm_medium=buy_now&utm_term=goog_product_37980.01&gclid=Cj0KEQjwms-vBRDlsM7utpaJ47ABEiQAIpKjTPf_cdc2B5w6UgezQzz6BCsSIIus06YuDGXW2o-FeF4aAuoP8P8HAQ