r/o units

So as i have been sitting here for the past 2 days making up r/o water for my 125g build i had a thought that ran threw my head. i have a 75gpd r/o unit. so lets say i get 70g a day from that of pure water. but then how much water is being wasted? could be a silly question but one that i would love to know the answer too ;D oh.. and is there anything that i could use this water for? instead of just putting it right down the drain?

 

70 clean = 280 waste. That's at the recommended 4:1 ratio

 

+1! Also you should really add a DI unit to that unless you like Cyano and algae! Trust me, I thought RO was enough until a big cyano problem! So i bought a RODI! within a month GONE!

You can use that water for houseplants, flushing your toilet, not a whole heck of alot else! i'm gonna save mine to water my garden in the spring!

 

Depends on your system. I have an RO/DI system and I am 1:1.

 

what system do you have thats 1:1?

 

wow! thats a shocker i was thinking only maybe double. but 4 times is crazy! im not too worried about it but was just thinking if its too much i dont want to run it as much as i do because then my landlord might get angry because i dont pay for my water lol. but i usually only fill a 32g rubbermaid can once a week so its not like im using that in 1 week but 2 lol

 

i'm telling ya! look into a DI unit! gonna save ya alot of hassle!

 

correction i do have an r/o di unit it has 3 pre filters the membrane and 2 di cartridges with resin on top. but i think i have to have the resin replaced because i am starting to see the red slime and its getting on my nerves!

 

bulkreefsupply.com! get the replaceable clear cartridge! cheap!

 

could i just buy the resin and refill the ones i have or do i need to get new cartridges?