Measuring Water Quality
Sterility is one aspect that is not mentioned here for obvious reasons (brevity). There is a way to safely, cheaply, and effectively test for water quality and even a beginner gets it right. And it...
Forum Discussion
TechWriter wrote:
"Water holding tank" was a bad term.
I have an under sink RO unit in the RV. Water from the water tank feeds the RO unit and waste water from the RO goes back into the water tank.
No wasted water.
Here's a clip from Wikipedia explaining the big wasted water disadvantage with household RO systems (probably includes RV RO systems). This is the reason why I will not use one in our home under drought conditions or in our RV that we drycamp in:
"Household reverse osmosis units use a lot of water because they have low back pressure. As a result, they recover only 5 to 15% of the water entering the system. The remainder is discharged as waste water. Because waste water carries with it the rejected contaminants, methods to recover this water are not practical for household systems. Wastewater is typically connected to the house drains and will add to the load on the household septic system. A reverse osmosis unit delivering five gallons of treated water per day may discharge between 20 and 90 gallons of waste water per day."
As a side note, here's a unit using another technology that accomplishes nearly all of what an RO unit does, while wasting up to 90% less water:
http://www.linxwater.com/products/linx-160-drinking-water-systems/
