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#6585083 - 09/01/11 09:30 AM clogged A/C condensation drain pipe
water_surge Offline
TFF Celebrity

Registered: 08/24/05
Posts: 8462
Loc: DFW
The condensation drain pipe for my A/C at home is clogged. What is the best way to clear it? The unit is upstairs and the pipe is about 20 foot long.
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#6585140 - 09/01/11 09:53 AM Re: clogged A/C condensation drain pipe [Re: water_surge]
Mell Offline
Pro Angler

Registered: 03/14/10
Posts: 579
Loc: plano
First you need to find out where it terminates- most likely a bathroom under the sink. Pull the stop and cover the sink with a towel then go back to the unit and cut the line (if pvc) blow through it with compressed air, co2 and reconnect with 3/4" pvc coupling and pvc cement (glue)
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#6585145 - 09/01/11 09:54 AM Re: clogged A/C condensation drain pipe [Re: Mell]
water_surge Offline
TFF Celebrity

Registered: 08/24/05
Posts: 8462
Loc: DFW
I guess I need to get a compressor.

Thanks Mell.
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#6585155 - 09/01/11 09:58 AM Re: clogged A/C condensation drain pipe [Re: water_surge]
Roller22 Online   content
TFF Team Angler

Registered: 03/30/04
Posts: 3336
Loc: Justin, TX
Be careful blowing compressed air from the unit down the pipe to the drain. Mine drains in my sink in my guest bathroom. Blew it out a few years ago and all the gunk inside the pipe ended up all over the guest bathroom. Came out the drain pipe from my sink and all over the vanity and walls.

Sometimes bleach poured in your pan will dissolve the build up if it is not to bad.
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#6585189 - 09/01/11 10:11 AM Re: clogged A/C condensation drain pipe [Re: Roller22]
Mell Offline
Pro Angler

Registered: 03/14/10
Posts: 579
Loc: plano
Thats why I told him to pull the stopper and cover the sink
_________________________
AIR COMFORT SOLUTIONS - A/C & Heating and Attic Insulation

(972) 816-5997 www.acsolutionstx.com
(903) 482-4679 TACLB00031802E
20% off any complete system for TFF member
TRANE, RHEEM, BRYANT, LENNOX & GOODMAN

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#6585235 - 09/01/11 10:28 AM Re: clogged A/C condensation drain pipe [Re: Mell]
Roller22 Online   content
TFF Team Angler

Registered: 03/30/04
Posts: 3336
Loc: Justin, TX
I did what you mentioned as per a plumbers advice. Blew the towel right out of the sink and gunk went everywhere.

Should of used a bigger towel. DUH!
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#6585294 - 09/01/11 10:44 AM Re: clogged A/C condensation drain pipe [Re: Roller22]
water_surge Offline
TFF Celebrity

Registered: 08/24/05
Posts: 8462
Loc: DFW
I used the compressor in my emergency battery jumper kit, worked like a charm. Since there isn't near as much power as a regular compressor. Some stuff got blown out on the initial hookup. But when I tested the pipe to see if it was still clogged, it was. So I hooked it back up, turned it on, and went outside. Again, some stuff got blown out on the initial blow. So I simply put my hand over the hole, held it there for a few seconds and again, some more stuff got blown out. Repeated this about 5 times, till I could actually hear the compressor and now the line is good to go.

Thanks for the help guys.
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#6585342 - 09/01/11 10:57 AM Re: clogged A/C condensation drain pipe [Re: water_surge]
Mell Offline
Pro Angler

Registered: 03/14/10
Posts: 579
Loc: plano
Glad I could help, probably saved yourself $95-165 depending on who you use for a/c service
_________________________
AIR COMFORT SOLUTIONS - A/C & Heating and Attic Insulation

(972) 816-5997 www.acsolutionstx.com
(903) 482-4679 TACLB00031802E
20% off any complete system for TFF member
TRANE, RHEEM, BRYANT, LENNOX & GOODMAN

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#6585527 - 09/01/11 11:43 AM Re: clogged A/C condensation drain pipe [Re: Mell]
TxJole Offline
Extreme Angler

Registered: 02/17/09
Posts: 1643
Loc: Cedar Creek all weekend
Gallo gun

www.diversitech.com

One of my #1 sellers!!!
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#6585548 - 09/01/11 11:50 AM Re: clogged A/C condensation drain pipe [Re: TxJole]
Trickster Offline
TFF Guru

Registered: 07/27/07
Posts: 26914
Loc: Plano TX
Bleach worked for me. Pour in a cup full every month and it will help.

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#6585560 - 09/01/11 11:53 AM Re: clogged A/C condensation drain pipe [Re: TxJole]
Mell Offline
Pro Angler

Registered: 03/14/10
Posts: 579
Loc: plano
I have one but only use it in tight spots, the nitrogen tank does a far better job and no little cartridges all over the place, definitly good for a diy homeowners.
_________________________
AIR COMFORT SOLUTIONS - A/C & Heating and Attic Insulation

(972) 816-5997 www.acsolutionstx.com
(903) 482-4679 TACLB00031802E
20% off any complete system for TFF member
TRANE, RHEEM, BRYANT, LENNOX & GOODMAN

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#6585582 - 09/01/11 11:59 AM Re: clogged A/C condensation drain pipe [Re: Trickster]
Mell Offline
Pro Angler

Registered: 03/14/10
Posts: 579
Loc: plano
Originally Posted By: Trickster
Bleach worked for me. Pour in a cup full every month and it will help.

Bleach is OK , it kills alge and bacteria growing in the drain line, but when coils are rusting and deteriorating and that debris get in the drain bleach doesn't help, the line has to be flushed.
_________________________
AIR COMFORT SOLUTIONS - A/C & Heating and Attic Insulation

(972) 816-5997 www.acsolutionstx.com
(903) 482-4679 TACLB00031802E
20% off any complete system for TFF member
TRANE, RHEEM, BRYANT, LENNOX & GOODMAN

Top
#6586766 - 09/01/11 04:50 PM Re: clogged A/C condensation drain pipe [Re: Mell]
Trickster Offline
TFF Guru

Registered: 07/27/07
Posts: 26914
Loc: Plano TX
Originally Posted By: Mell
Originally Posted By: Trickster
Bleach worked for me. Pour in a cup full every month and it will help.

Bleach is OK , it kills alge and bacteria growing in the drain line, but when coils are rusting and deteriorating and that debris get in the drain bleach doesn't help, the line has to be flushed.


Good to know. Thanks. My coils are good.

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#6631669 - 09/14/11 12:11 PM Re: clogged A/C condensation drain pipe [Re: Mell]
Stump jumper Offline
TFF Team Angler

Registered: 04/19/04
Posts: 4971
Loc: Rockwall
Originally Posted By: Mell
Originally Posted By: Trickster
Bleach worked for me. Pour in a cup full every month and it will help.

Bleach is OK , it kills alge and bacteria growing in the drain line, but when coils are rusting and deteriorating and that debris get in the drain bleach doesn't help, the line has to be flushed.


I always thought of bleach as PM not a fix.

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