âCode Redâ âCode Blueâ, âCode Blackââ¦people sometimes wonder what these terms mean if they happen to hear them used in a hospital (or more likely, hear them used on a TV series about doctors).his Site Might Help You. RE: what do the hospital color codes mean? Are they generally the same in every hospital? for instance, in our local hospital I have heard the colors; pink, brown, gray, white, yellow, red, and of course, blue.
Re-Use Waste from Reverse Osmosis (RO) Filter. Many of us use Reverse Osmosis Filters (RO filters) to purify Drinking Water, in areas with high TDS (Total Dissolved Salts) content in the Water. Around 75% of the Water fed into a RO filter, is wasted. Only 25% gets extracted as drinking Water.
Landfill (dump) runoff Septic system leaking WHAT CAN WE DO TO KEEP WATER CLEAN? There are many things we can do so that we do not add to nonpoint source pollution. Everyone needs to do their part. 1. Use less water. (This is called conservation.) Using water efficiently creates less waste water. â¢ Turn the water faucet off when your brush your teeth.