"Is it possible to buy foam backer rod from a store, and if so, where would you look to buy it?
Since I live in Canada, I don't have an Ace Hardware or Lowes near me."-Croc
Home Hardware is where I get all my FBR. They have 1/2" and 5/8", and sometimes even 3/4". Tim-Br Mart should also stock stuff like that.
Another question -- I've noticed a really tight fit between my 5/8" FBR and 1/2" SCH 40 PVC, maybe even too tight. Should I blow-dry the FBR to shrink it a little, or any other suggestions?