  We propose a new equation of state for the Dark Energy component of the
Universe. It is modeled on the equation of state $p=w(\rho-\rho_{*})$ which can
describe a liquid, for example water. We show that its energy density naturally
decomposes into a component that behaves as a cosmological constant and one
whose energy density scales as $a^{-3(1+w)}$, and fit the parameters specifying
the equation of state to the new SNIa data, as well as WMAP and 2dF data. We
find that reasonable values of the parameters can be found that give our model
the same $\chi^2$ as that of $\Lambda$CDM. A remarkable feature of the model is
that we can do all this with $w>0$.
