An AquaFresco filter would allow hotels to adapt almost any commercial machine to use far less water than a tunnel washer. It would be an appealing option for hotel owners unwilling to invest in ...

Q: A couple of days ago, the city flushed out the water mains. For several hours after they finished, I got a lot of dark sludge in the water. Now my washing machine takes a long time to fill. Is s… ...