Well, I think we're definitely going to not only treat chemically before putting down our pool but we are also going to use some type of physical weed barrier! I need to locate that pro bottom mentioned above. Any ideas?

Close friends of ours have a 24 ft vouge in their back yard (they have been our inspiration for getting a pool) and while they were on vacation this summer a weed grew up through their liner!

Thanks for all the info!