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A/C drip pan full. Bleach down PVC drain pipe?

Posted on 10/10/17 at 10:42 pm
Posted by King of New Orleans
In front of The Hungry Tiger
Member since Jul 2011
9946 posts
Posted on 10/10/17 at 10:42 pm
I haven't had any issues for a long time with my A/C but last night the system shut off and I saw the drip pan was full. I got the wet vac to it and cleaned it up.

Tonight I poured one cup of bleach down the PVC drain pipe in hopes to clear any algae or dirt out. How long will it take for the bleach to take effect and should I do it a few times over the next few days?
Posted by Koach K
Member since Nov 2016
4062 posts
Posted on 10/10/17 at 10:43 pm to
Sure. Just don't go crazy around all the metal in the air handler with it.
Posted by Polycarp
Texas
Member since Feb 2009
5564 posts
Posted on 10/10/17 at 10:44 pm to
Damn, a cup!? Not more that a cap full dude.
Posted by Spelt it rong
Louisiana
Member since Oct 2012
10001 posts
Posted on 10/10/17 at 10:45 pm to
quote:

Tonight I poured one cup of bleach down the PVC drain pipe in hopes to clear any algae or dirt out. How long will it take for the bleach to take effect and should I do it a few times over the next few days?


That should be plenty. Cap full once every few months and you're golden.
Posted by jmh5724
Member since Jan 2012
2128 posts
Posted on 10/10/17 at 10:56 pm to
My drain plugged on me a while back. I used a compressor to bust through the pluggage and now I dump bleach in it ever couple months to keep it from building up.
Posted by jmarto1
Houma, LA/ Las Vegas, NV
Member since Mar 2008
33848 posts
Posted on 10/10/17 at 10:57 pm to
They have tablets specifically for this
Posted by King of New Orleans
In front of The Hungry Tiger
Member since Jul 2011
9946 posts
Posted on 10/10/17 at 10:58 pm to
Where can I buy these?
Posted by Btrtigerfan
Disgruntled employee
Member since Dec 2007
21363 posts
Posted on 10/10/17 at 10:58 pm to
Is there a rust color in your drip pan?
Posted by Tygerfan
Member since Jan 2004
33742 posts
Posted on 10/10/17 at 11:00 pm to
Posted by King of New Orleans
In front of The Hungry Tiger
Member since Jul 2011
9946 posts
Posted on 10/10/17 at 11:01 pm to
Yeah but it's been there. I've had numerous techs come out over the years who have seen the rust and never mentioned any issues.
Posted by King of New Orleans
In front of The Hungry Tiger
Member since Jul 2011
9946 posts
Posted on 10/10/17 at 11:02 pm to
Will that hose do more good than bleach?
Posted by Btrtigerfan
Disgruntled employee
Member since Dec 2007
21363 posts
Posted on 10/10/17 at 11:04 pm to
Just be aware of flaky metal bits in the pan or drain. It's a sign of the coil deteriorating.
Posted by saint tiger225
San Diego
Member since Jan 2011
35348 posts
Posted on 10/10/17 at 11:04 pm to
With all this humidity, it's going to happen. I'd empty it for now, pray it's just something like a drain plug clogged, then get a reliable A/C company out there to tune it up right. Be careful with too many home remedies, it'll eventually do more damage than good, and you'll be paying for whole new system. Hopefully, you're not at that stage already.


Source: this exact same stuff happened to my mom's A/C for about a year until she had to replace it.
This post was edited on 10/10/17 at 11:14 pm
Posted by Tygerfan
Member since Jan 2004
33742 posts
Posted on 10/10/17 at 11:06 pm to
quote:

Will that hose do more good than bleach?



It will clear it faster but not clean the line. I prefer vinegar over bleach when cleaning the line because bleach over time can do allot more harm to it. Vinegar seems to clean just as much but not be as corrosive.
Posted by King of New Orleans
In front of The Hungry Tiger
Member since Jul 2011
9946 posts
Posted on 10/10/17 at 11:06 pm to
Yeah I don't have any rusty bits. Just the actual pan has some rust.
Posted by The Great McGinty
Member since Jan 2017
1384 posts
Posted on 10/10/17 at 11:07 pm to
Blast pipe from drip pan with water hose and bleach.
Posted by King of New Orleans
In front of The Hungry Tiger
Member since Jul 2011
9946 posts
Posted on 10/10/17 at 11:08 pm to
Thanks, Saint. Definitely trying to stay away from a lot of at home self help. Really just seeing if the bleach works. If not, I'll end up calling a guy. I'm sure the whole system could use some TLC anyway.
Posted by Tygerfan
Member since Jan 2004
33742 posts
Posted on 10/10/17 at 11:08 pm to
quote:

then get a reliable A/C company out there to tune it up right.


For a clogged line all they will do is blow compressed air through it and charge $200 for the service call. Better just to fix it yourself but do it properly.

quote:

Be careful with too many home remedies, it'll eventually do more damage than good


Like I mentioned in my last post, vinegar over bleach or there will be damage in the future.
Posted by Tygerfan
Member since Jan 2004
33742 posts
Posted on 10/10/17 at 11:15 pm to
Also, check near your drain line opening for what looks like an air hose connector with either a red or black cap. This would be next to a shut off valve to the line. If there, you can shut the valve and hook an air compressor up to the drain line to clear it.
Posted by baldona
Florida
Member since Feb 2016
20389 posts
Posted on 10/10/17 at 11:22 pm to
quote:

With all this humidity, it's going to happen. I'd empty it for now, pray it's just something like a drain plug clogged, then get a reliable A/C company out there to tune it up right. Be careful with too many home remedies, it'll eventually do more damage than good, and you'll be paying for whole new system. Hopefully, you're not at that stage already.


With all due respect, you don't really know what you are talking about. "Calling a professional" is completely unnecessary, AC drains get clogged with algae, dirt, etc. routinely and need to be cleaned with something like bleach. As said, an Ac tech will tell you to put a capful of bleach in there about 3-4 times a year. The Ac tech will come out and do the exact same procedure, it's not a symptom of something else it's the symptom of exactly that.
This post was edited on 10/10/17 at 11:24 pm
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