How far can 1/8" tubing be run to mixing station?

[Scooter21]

I'm getting ready to run the water line to my mixing station that I'm building. The mixing station and the sink are in different rooms. I'm going to mount the filter under the sink. I ordered 1/8" tubing to run from the filter to the mixing station. I think it'll end up with about 20 feet of length. Will that add too much resistance? Do I need to up size the tubing?

 

[exnisstech]

Any reason you don't just use RO tubing? Seems like it would be easier being able to use push to connect fittings. I can't answer about the resistance.

 

[Scooter21]

Any reason you don't just use RO tubing? Seems like it would be easier being able to use push to connect fittings. I can't answer about the resistance.

That's exactly what I'm using

 

[Stevorino]

Personally, RO tubing is the only thing I would consider here (which is what it sounds like you are using?).

If the run is too long, you can by an 'RODI booster pump' to give you that extra umph.

 

[Scooter21]

Personally, RO tubing is the only thing I would consider here (which is what it sounds like you are using?).

If the run is too long, you can by an 'RODI booster pump' to give you that extra umph.

Is 20' too far?

 

[esquare]

I don't think that will be a problem. I have a longer run than that using standard 1/4" ro tube to my drinking water bladder tank.

 

[esquare]

I assume you're talking about on the same floor, correct?

 

[Scooter21]

I assume you're talking about on the same floor, correct?

Yes. On the same floor.

 

[esquare]

Yes. On the same floor.

I am not good with fluid dynamics and can only speak from personal experience but I don't think you will have any problem. If your freshwater tank doesn't fill as fast as you think it should you can always move the RO Filter from under the sink to the other room with the freshwater reservoir and get the full house water pressure to help move the water.

 

[Neocold]

You should be fine. All my RO tubing runs go under the sub floor and pop back up at the destination. I run to tubing line from my sink to the pantry the total tube run is somewhere around 20 feet. The RODI filters (75 gallon per day) are in the pantry. Then I run RO tubing from the filters to a ATO reservoir under the Display Tank in the Living room and that RO tubing run is around 30 feet.

I also run RO tubing from the mixing tank in the pantry to the DT for the Auto Water Change (powered by AWC pump in the mixing container). All my RO tubing runs work just fine. The flow is perfectly acceptable.

 

[Stevorino]

Is 20' too far?

Probably not... I have run further myself, but part of it probably has to do with your RODI unit as well. I'd go for it and if it feels underpowered then get a booster.