I am going to make one frame for all 4 to sit inside of. But I am going to just take and put another board in between but not attach it to the frame. That way I can just remove the boards when I am done.. They will fit tight against the frame though. I have also seen where some folks are reusing the water bobs by putting some bleach and a bit of water to clean the bobs out.. Then they empty them and shake them to get as much water out as possible and let them dry out and then reuse them. I am not sure about doing that though. The bleach is good but they are a one use item. I am looking around for some as well as the water bobs for some that are like a water bob but reusable. I thought I had seen some on a site a couple of years ago. Will have to go back to see if I can find it. If I do, I will post it.
