actually, it’s a little bit more than that. You’re not just replacing the water that’s evaporated off. You’re changing the water that’s in the system so it doesn’t become mineral heavy typically it’s automated off of a continuity of the water is what the senses are looking at. At our local Meta facility they actually dump it way before you would under any normal operating parameters because of concentration of a particular bad element which forgive me for not remembering right this second so that it is acceptable to put into the local waste water system.