[fatlazyless]

Apparently the Quikrete rip-rap is not available at Lowe's or Home Depot in Gilford and Tilton and their Quikrete bags of el cheapo concrete come in a more durable, extra heavy duty paper bag. After soaking in the lake for 24-hours, the concrete mix inside will cure and set up while under water inside the paper bag, and the soggy paper bag can be scraped off with a garden claw tool, a three prong cultivator, and disposed properly so the heavy brown paper does not end up somewhere in the lake water.

Is a strong possibility the more expensive bagged Quikrete, high strength concrete, works better at curing underwater in the bag than the el cheapo Quikrete concrete because it has more cement and less sand in the mix. Plus is maybe other unknown additive to high strength concrete to get it to cure into a more elastic stronger bond and a better 150-lb (mix and water) big lump of concrete.