ghostrida3
Member
has ur tank ever had any real effect on ur waterbill?
<a href=showthread.php?s=&postid=10180389#post10180389 target=_blank>Originally posted</a> by Doahh
Guys that 98% rejection rate is the TDS rejection...
Waste water is generally about 1/4 or 1/2 good/bad
<a href=showthread.php?s=&postid=10183882#post10183882 target=_blank>Originally posted</a> by MarineFishGuy
I produce about 1 gallon of RODI water for every 6 gallons of waste water or about 84% rejection. Although it has been a long time since I tested this so it may have changed.
I used 95% since I don't know what unit he has and I wanted to consider "worst case" scenarios.
Either way, the Water Use Calculator is very insightful in determining what activites contribute the most to the water bill.
While the RODI filter may increase the bill by $5-10/month, $40 is excessive for sure when considering normal topoffs/water changes on a 120g tank.