Fitting reverse osmosis drain problem

The pipe under my sink is too small to fit the waste clamp
My plants are not enjoying the hard water atm I'm having big problems

Was considering something like this but I cannot find one that's 25mm - 6mm
Losing my mind here please help what are my options

Drill and trap your drain pipe at the think point just above the nut put a fitting in that you can connect the hose to that fitting...

Romeo7701 said:

Drill and trap your drain pipe at the think point just above the nut put a fitting in that you can connect the hose to that fitting...

Click to expand...

It has 50% overlap it wint be airtight

Not sure I understand you, I know nothing about plumbing

Keep in mind the waste water drain line should be a steady down hill run. I was unable to pull that off under my sink, and had to run the hose to the basement washing machine plumbing

Boatguy said:

Keep in mind the waste water drain line should be a steady down hill run. I was unable to pull that off under my sink, and had to run the hose to the basement washing machine plumbing

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Is this even if my RO has a pump?

NeighboursFenceShifter said:

Not sure I understand you, I know nothing about plumbing

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Day your line you are trying to plumb in is 3/8 line get you a fitting that is 3/8 x 3/8 or 3/8 by 1/4 NPT national pipe thread... By a tap for the size you choose home Depot, Lowe's or some other hardware store normally carry the pipe taps I'm talking about reference the drill size for the tap buy it then drill at the thick solder size use tap tap it potty in fitting and hook up line...

I think he meant drill and tap your drain pipe to fit a 1/4 push-connect or compression fitting.
Go to your local hardware store and tell them what you need and they should be able to get you the right connector, pilot bit and tap pretty easily.


Edit:
I think for you across the pond wankers that's 6mm

NeighboursFenceShifter said:

Is this even if my RO has a pump?

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You can drill and tap on the top of the 45 and then you would have the down hill angle to prevent back splash from your RO line...

NeighboursFenceShifter said:

Is this even if my RO has a pump?

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Yes. A booster pump doesnt change how the system operates.

Tap on? Tap here means faucet I'm confused

Can you guys find me what you mean on either of these websites

If it needs to be at a decline I'm thinking my best option would just be to fit this clamp after replacing this current U bend with a U bend pipe that has more length to it but no matter what I search I cannot find one

Compression Fitting



Hole Tap

7CardBud said:

Compression Fitting
View attachment 4774069


Hole Tap

View attachment 4774071

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So I drill a hole in the pipe where I insert the hole tap then push onto it the compression fitting which I will be able to put the 6mm drainage tube into the opposite side of?

Romeo7701 said:

You can drill and tap on the top of the 45 and then you would have the down hill angle to prevent back splash from your RO line...

Click to expand...

If it's at the top wouldnt that be the opposite? Do you mean at the bottom of the 45mm pipe where the U is?

At this rate I just do the whole hydro grow in hard water I have learning difficulty I am smart at growing but only after 500 mistakes in my youth, this here I dont get no one warned me about problems plumbing i was just told get an RO filter

NeighboursFenceShifter said:

Do you mean at the bottom of the 45mm pipe where the U is?

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It should be above the trap/U.
Alot of waste comes out of that small line, something like 4 times whatever you produce. So 5 gallons of ro water, dumps 20 down the drain.

This no go?

How to use a NPT tap and install fitting.



Connecting Tube to compression fitting

solakani said:

This no go?

https://www.thespruce.com/thmb/a-yYQFMjaeFlfwCGrUzv8eONvxM=/400x0/filters:no_upscale():max_bytes(150000):strip_icc():format(webp)/reverse_osmosis_drain-56a73c123df78cf7729386c7.jpg

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That reducer what's it called where did you get it?

7CardBud said:

How to use a NPT tap and install fitting.

Connecting Tube to compression fitting

Click to expand...

I'll watch when home thank you