Need to caulk?

[duraleigh]

Caulk it. The aesthetic value alone is probably worth the hassle. Secondly, any water getting under your decking is your enemy. It's possible it may last another twenty, but I'll bet it'll crack as long as the waer can get in there and continue to erode your base under the deck.

[dhale1]

I agree. I was suprised at how much better the pool looked after it was caulked. It was a major difference over the foam that the builder put in.

[bhelme]

Forget about esthetics - caulk it for the peace of mind. I got great advice on my thread on how to DIY.

http://www.poolforum.com/pf2/showthread.php?t=402