Drainage issue while installing my new RO system

Evan
by Evan
Hello, I am installing an RO system in my house. It is an under the sink model. I am at the point in the process where I install the little clamp around a drainage pipe and drill a hole in it for the system to drain into. The only problem is, I don't have a drainage pipe like what they are saying I should have. I'll post a picture of what I'm dealing with. I don't have a dishwasher. I have one pipe leading away from the garage disposal. What can I do? Thanks in advance. I am desperately trying to finish this project.
  6 answers
  • Hope Williams Hope Williams on Oct 26, 2015
    Your "drainage" hole can be cut in above the 90. By above I mean in the first portion of the down pipe that's connected to the sink drain itself. OR.... Call the help line in the package instructions. That would be your best bet. Be careful not to void your warranty in any way.
  • Gary Stenzel Gary Stenzel on Oct 26, 2015
    I agree with Hope, drill a hole in the topside of your white plastic pipe, insert a few inches of your RO drain tube, then silicone around the tube. I did pretty much the same thing with mine and have never had any problems.
  • Rus1058682 Rus1058682 on Oct 26, 2015
    Why not spend the $3.00 (or less) and buy a drain kit that has a dishwasher drain made into it, and replace the whole pipe leading to the outside drain? There is already a connection at the end of the chrome pipe to the wall..
  • Tonia Tonia on Oct 26, 2015
    Just food for thought for anyone else interested in an RO. Check out the waste issue before purchasing. An RO waste 1.5 gallons of water to fill 1 glass of water. Over a typical day it will waste 27 gallons just refilling itself. Not a great option for draught areas.
    • C Crow C Crow on Oct 26, 2015
      @Tonia An RO unit uses more water in its operation than you actually consume, but it uses water only while it's filling its storage tank. When the tank is full, the whole unit shuts down and no water runs to drain. In terms of expense, it's like a couple extra toilet flushes a day. We only flush when we MUST and all water that flows while heating it for washing or showering is used on outdoor plants (we have no grass—it is criminal what a waste of water that is). So while we use an RO system because we hate the algal taste of our local water, we conserve more than the RO wastes to offset it.
  • Tonia Tonia on Oct 26, 2015
    It actually uses more water to refill the tank. The less water it needs to replace the more back pressure there is and that forces more water to be wasted. An empty tank uses less % of waste water then a tank that is topping off. I was told by a plumber/Hvac professional not to use one with my septic because it would flush too much water through my system.
  • Evan Evan on Oct 26, 2015
    You guys are all awesome. I ended up finished the project with some advice I got. Here's a picture of the result. It's been running for 24hrs no leaks.
    • Hope Williams Hope Williams on Oct 27, 2015
      We here in South Georgia, have high arsenic. Our last home, we put a whole house Arsenic Guard filtration system in. This one, like yours, is a point of use. Under the kitchen sink. You need to do what is right for your family with what is available. RO's are not a good choice for our area because of the super high calcium, it clogs really bad every week. I wish you and your family the very best! Glad you got it fixed here at Hometalk!