Setting up StealthRO300
- Thread starter Lilmink
- Start date
NewGrower2011
Well-Known Member
I use a Rubbermaid Brute Tote for storage. Nice & heavy duty along with being food safe (the totes are for sure, I think the large trash cans are as well - the smaller cans are used in food service so the larger ones should be as well).
I just attached a float valve near the top and then routed the waste water line back to the same sink I've attached for my water source.
I just attached a float valve near the top and then routed the waste water line back to the same sink I've attached for my water source.
Boatguy
Well-Known Member
RO is pretty inefficient. You will be producing far more waste than usable product.
Some systems are around 4:1, others can be as bad as 20:1
McShnutz
Well-Known Member
I'll be tearing everything apart today to replace all filters, membranes and resin. Rerouting all my lines and configuring a better placement of the membranes. Goal is to make everything accessible for replacement. Have a few back flush kits to install on each membrane.
McShnutz
Well-Known Member
I forgot to mention how to deal with the waste water. So with my system, I ran the brine line to a pvc drain. I put a check valve on the brine line. Probably unnecessary but it makes me feel better.
Your model only has 2 membranes right?
You can boost efficiency by adding a pump, that is, if your supply is below 60psi.
Yes 2. My water pressure is already low curious to see how this will effect things.
Milky Weed
Well-Known Member
Man sometimes i look at shit and im sure glad i made well water work lol
Lordhooha
Well-Known Member
Bad part even with the 1:1 valve and good water pressure you’ll dump 3 to 7 gal of waste for every gal of fresh you make. Ro systems like the small ones under 4500 gpd units don’t have recirculating valves and rely on pressure but also water temp. For every degree under 77 degrees you lose x amount of efficiency. Resulting in a large amount of waste.
7 to 1 waste!
That's what I measured after I read your posts about the temperature.
Hollatchaboy
Well-Known Member
Get a permeate pump. It'll make your ro unit run more efficiently.
Lordhooha
Well-Known Member
Most ppl don't read the fine print
Lordhooha
Well-Known Member
Slightly if the incoming water is still coming in cold the ro membrane will reject more
Water temp is what makes the filter more or less permeable
fragileassassin
Well-Known Member
-They make cold water membranes that are much more efficient for cold water. In the winter my water comes out at like 45F. VERY cold.
-You can turn the water pressure regulator up on your whole house, I did.
-Your output to waste is almost entirely dependent on those 2 things plus your input quality.
I easily got 2-3 parts clean water to 1 part waste water with the cold water membrane and proper water pressure, but my water went into it at like 40ppm.
-You can turn the water pressure regulator up on your whole house, I did.
-Your output to waste is almost entirely dependent on those 2 things plus your input quality.
I easily got 2-3 parts clean water to 1 part waste water with the cold water membrane and proper water pressure, but my water went into it at like 40ppm.
Lordhooha
Well-Known Member
Curious to know if you measured the waste and product water 5 gal. Bucket to 5 gal bucket. I took two 275 gal totes and measured to see the before and after.
Lordhooha
Well-Known Member
Granted my ro units at my grows are running close to 200 psi are the benefits but I have home ones like a 1k gpd under my sink and for my garage home grow or whatever it is anymore lol
fragileassassin
Well-Known Member
Yes, it was measured. My clean output was like full flow and the waste water was barely a trickle and it came out at 0ppm.
That cold water membrane pretty much doubled my output.
But like I said, my water is very very clean for city water. To the point that I stopped using RO completely and just run it through a sediment filter now for clones and seedlings and just straight out the hose passed that.