Under Counter RO System - hooking the drain line up - options?

[nh_handyman]

Several months ago I put in an under the counter RO system - it came with a saddle-style connection to connect to the sink's drain line.
It also came with a 'if you are installing this in the state of MA, you must call a licensed plumber as saddle connections are not allowed'

Well, I grew up in MA and their silly rules involving homeowners DIY projects - but I'm in NH now....

However, once in a while this drain saddle connections backs up.

What I want to know from MA plumbers is how would they plum in the drain (1/4") line for an under the counter RO system?

Note I also have a dishwasher connected to the drain (above the saddle). This is connected to a connection on the vertical drain line itself (it was manufactured with this connection).

 

[bud16415]

Probably an appliance wye.

 

[nh_handyman]

Probably an appliance wye.

I'll see if they have dual ones - still need the dishwasher connected!

 

[user 4883]

I'll see if they have dual ones - still need the dishwasher connected!

probably have to install another Y on the the existing Y to make a dual port. One for the DW and one for the RO.

 

[nh_handyman]

Found this after googling for dual wye:

https://www.amazon.com/gp/product/B009XDMEK4/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
the 3/8 compression is exactly what the RO uses!

 

[bud16415]

They might make a dual but I haven’t seen it. I would just stack two singles with a short nipple between them. That is if you have the room. New plumbing and working around what you have can be two different things.

 

[Hamberg]

Easy fix!

(assuming you know to shut the water off and that feed is not behind a wall)

Cut the feed use a Sharkbite tee and a short piece of Pex with on of these

 

[DesertRider]

Easy fix!

(assuming you know to shut the water off and that feed is not behind a wall)

Cut the feed use a Sharkbite tee and a short piece of Pex with on of these

View attachment 26775

Hamburg, I’ve been looking for something like this for another project.... I googled “Sharkbite tee” but did not find this exact style... lots of common Tee’s but not this one with the shutoff valves... you have any more information on this actual device?... thanks

 

[DesertRider]

Hamburg, I’ve been looking for something like this for another project.... I googled “Sharkbite tee” but did not find this exact style... lots of common Tee’s but not this one with the shutoff valves... you have any more information on this actual device?... thanks

I found it, it’s called a “SHARKBITE SHUTOFF VALVE... thanks for your post, you’ve solved a nagging problem I’ve had for the last couple of weeks now

 

[Spicoli43]

I need the same thing, I had drilled the down pipe, but that gunked up and ended up plugging the entire system. That was with a disposer though. I got rid of the disposer, so I only have the down pipe... Here is a different brand for those that don't have Amazon..

https://www.walmart.com/ip/DLA-D-Drain-Line-Adapter/151379012

 

[Hamberg]

Hamburg, I’ve been looking for something like this for another project....

Sure, I get them at Lowes: (link) Sharkbite appliance tee. Have not seen them (dual port version) anywhere else.

 

[Hamberg]

If you don't have a Lowes and aren't opposed to a non-Sharkbite brand...

(link) Efield dual port push-fit