Lake Wazee
We decided to make a trip up to Black River Falls for Memorial Day weekend and do some diving in Lake Wazee (or Wazee Lake, depending on who you ask). Eric has recently bought a rebreather and finished his initial certification classes, and he needs practice diving with his rebreather before he can move on to the next level. I am still diving open circuit, which means air is only moving in one direction - I breathe in air from my tank, and I expel my breath into the water (hence, all of the bubbles). With his rebreather, Eric is diving closed circuit - his air/breath is contained in a closed loop. He mixes pure oxygen with air, which he breathes in, and when he expels his breath it enters a "scrubber" on his back which eliminates his carbon dioxide. More oxygen is added, and then he can rebreathe that air, hence the term "rebreather." Since all of his air is contained in a closed loop, he doesn't produce any bubbles. There are several draws to diving with a rebr...