How To Properly Install A Condensate Line. - HVAC - DIY Chatroom Home Improvement Forum
Advertisement


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools
Display Modes
Old 10-22-2015, 02:43 PM   #1
Member
 
Join Date: Jan 2012
Posts: 150
Rewards Points: 87
Default

How to properly install a condensate line.


I just had the head of a ductless mini-split unit switched from a condensate pump over to a through the wall run to a nearby washer/dryer stack and I am not really pleased with the work.

This is probably my favorite part. I really like how they notched the studs of my load bearing wall instead of drilling it after I took the time to sister on that plywood with structural screws like my engineer suggested....



This shouldn't be any trouble to finish over right? Drywall is super flexible. Just smoosh it all together.

And sure lets just jam that down in there with washer drain pipe. Why not.






I don't really want to call them back to "fix" it again. I would rather just do it correctly myself.

I can fix the wall studs myself but am not sure of the best way to fix the drain.

What is the best way to connect that condensate line to my washer/dryer stack?

I was thinking of using the right side punch out of the washer outlet box and running that down to tie into the washer drain line to share the existing p-trap.

My contact with the company who scheduled this was talking about some kind of specific trap to use with this sort of setup, although clearly they didn't bring or use it. Is this a condensate trap? Or something special for ductless mini splits?

Thanks
hellonoko is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 10-22-2015, 06:11 PM   #2
Member
 
Join Date: Jul 2013
Posts: 1,087
Rewards Points: 2,005
Default


Whats with the loop in the drain hose ? Is that their idea of a trap ?

The washer drain has a trap at the bottom , where it heads to the right .

Is this pier and beam or concrete slab ?

God bless
Wyr
WyrTwister is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 10-22-2015, 06:27 PM   #3
Hvac Pro
 
yuri's Avatar
 
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 21,285
Rewards Points: 704
Default


First of all mini-spilts do not drain a lot of water and are notorious for that water sitting in places and building up algae when it becomes stagnant and then plugging the pipe. I would rip that flex crap out and use smooth 3/4" pex or cheap black poly pipe as it is flexible and then connect it somehow above the trap in the pipe the washer uses. You can get angle Y fittings to hookup washers and possibly hook it into there.
__________________
"Cut it twice and it is still too short".
yuri is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 10-22-2015, 06:31 PM   #4
Member
 
Join Date: Jul 2013
Posts: 1,087
Rewards Points: 2,005
Default


Rightly or wrongly , on our 2 MS's , I used 5/8" automotive heater hose left over from another project . This fit the factory corrugated drain tube .

Both drain to the outside ( through the wall ) , on the ground .

God bless
Wyr
WyrTwister is offline   Reply With Quote
Old 10-22-2015, 06:35 PM   #5
Hvac Pro
 
yuri's Avatar
 
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 21,285
Rewards Points: 704
Default


I would take the tube they supplied and make it short and adapt it to some 3/4" pipe. The smoother and least amount of kinks the better.
__________________
"Cut it twice and it is still too short".
yuri is offline   Reply With Quote
Old 10-22-2015, 06:36 PM   #6
Member
 
CompleteW&D's Avatar
 
Join Date: Sep 2015
Location: Indianapolis, IN
Posts: 262
Rewards Points: 524
Default


Quote:
Originally Posted by WyrTwister View Post
Whats with the loop in the drain hose ? Is that their idea of a trap ?

The washer drain has a trap at the bottom , where it heads to the right .

Is this pier and beam or concrete slab ?

God bless
Wyr
When I first saw that, I thought the same thing. Either that, or they were just too lazy to cut the excess.

Plus, I've never seen any condensate drain line that's "corrugated" like that. Condensate drains are generally clear, flexible PVC. That drain has potential to trap moisture all along it, causing mold and mildew build up over time. A couple of years from now, you will likely start smelling it.

If it were me, I would demand they come and re-do everything. And, tell them this time, have their right angle drill with them to properly drill those studs.

As far as sistering in the drain with the washer drain, I have no problem with that. I would zip tie them together though, just to make sure the condensate drain line (the clear PVC one) doesn't pop out.
CompleteW&D is offline   Reply With Quote
Old 10-22-2015, 06:40 PM   #7
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 36,489
Rewards Points: 18,116
Default


Why is it not just draining to the outside?
Should have been drilled holes in the studs not notched.
A water wall should have been 2 X 6 not 2 X 4's.
Even that dryer vent hose should be trashed.
It would burn through in about 30 seconds.
Looks like that washer box was installed up side down.
__________________
When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions
joecaption is offline   Reply With Quote
Old 10-22-2015, 06:42 PM   #8
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 36,489
Rewards Points: 18,116
Default


Post should read, "how not to install a condensate drain"
__________________
When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions
joecaption is offline   Reply With Quote
Old 10-22-2015, 07:21 PM   #9
Member
 
Join Date: Jan 2012
Posts: 150
Rewards Points: 87
Default


@WyrTwister - Yes, I think that is their idea of a trap, or a high drain loop? Not sure really. This is concrete slab but this is on the 2nd floor so not on the slab.

@yuri - Thanks. I will check that out. I have a an expansion pex tool so I could do that easily.

@CompleteW&D - Thanks for the notes. I also think they should fix it but then I'm sort of thinking.. what else will they break while 'fixing' it? Might just be easier to fix myself.

@joecaption - It's not draining to the outside because it's on an interior wall. Yes they should have drilled, thus this post... What should the dryer vent be replaced with?
hellonoko is offline   Reply With Quote
Old 10-23-2015, 07:08 PM   #10
Member
 
Join Date: May 2015
Location: Canada
Posts: 8,051
Rewards Points: 80
Default


Most ductless unit's have the condensate on the high side, so no trap required. Double check your manual though. I too would have used 3/4 pvc. It helps prevent blockages.

I probably would have "y'ed" off the drain instead of jamming it in like that, but it works.

The stud work is great...... Erm yeah...

Cheers!
supers05 is offline   Reply With Quote
Old 10-23-2015, 07:24 PM   #11
Plumber
 
TheEplumber's Avatar
 
Join Date: Jul 2010
Location: North Idaho
Posts: 11,174
Rewards Points: 852
Default


Make the suggested smooth wall pipe repairs as suggested, for the for the washer box- cut in a 2" inverted wye in the stand- up pretty high- point it toward the right side of the box. On the branch of wye use a 45 to align to the knock out hole at the right side of the box. Of course, add pipe between the fittings. Use ABS glue at the joints
Feed your condensate tube through the top hole and into the removed knock out on the right. Done deal
__________________
When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions
TheEplumber is online now   Reply With Quote
The Following User Says Thank You to TheEplumber For This Useful Post:
CompleteW&D (10-24-2015)
Sponsored Links
Advertisement
 
Reply

Tags
condensate , drain , minisplit , plumbing


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
location of condensate drain line nugentcn HVAC 7 06-28-2015 05:50 PM
AC Condensate line ssgtjoenunez Plumbing 18 03-12-2013 08:08 PM
Condensate pump install question kboorman HVAC 6 07-06-2012 08:54 PM
Condensate line clogged? kcrossley2 HVAC 6 07-27-2011 11:51 AM
Gas Dryer - Install Flex Line and Also No Heat mark2741 Appliances 8 07-05-2011 01:10 AM




Top of Page | View New Posts