I bought the bottle, because I was tired of cycling on the plastic taste. The ECOtanka looks classy, the shutters go smoothly and keep absolutely tight even with seltzer. The only downside is that you have to shake the bottle when drinking something so that the water actually flows. The usual pressures as in a plastic bottle is of course no longer possible, which is why the fluid more slowly from the ECOtanka comes than conventional bottles. This fact lies in the nature of things, which is why it no rating can be withdrawn.
