Pour boiling water into Aircon drain is it ok?

[dezzo69]

NEVER use hot water for AC pipes. you will spoil the seals between the pipe joints which will cause your pipes to leak within the walls.

 

[testerjp]

Vinegar and baking soda neutralise each other. Vinegar is corrosive to metal.

Hot water causes thermal stress to the plastic and it could become brittle or damaged.

There are these things call drain pan tablets which are supposed to be safe. Even those are not truly effective. Don't waste time.

 

[Mr Duck]

This one should get a wet dry vacuum to suck out from the pipe while pouring not hot water will do.

 

[yildun]

Good example of kiang jiu ho, mai gey kiang.

 

[eyz]

the correct method is to clog the drainage pipe end.

the pour from the FCU until its full, repeat for other FCUs.

leave it soaking with your solution/hot water for 10 min, and release.

most important steps, flush the drainage pipe with water for 2 to 3 times, to remove the residue.

 

[dinosaur2776]

Knn use skillsfuture credit learn to repair air con

 

[Darkshadows]

Spray fins with bleach and let it flow down pipe. But smells of bleach for a while.

Can use 3% hydrogen Peroxide oso as it's odourless.

Or use 70% or 99% isoproypl alcohol to kill off algae that clogged the drain pipes but oso leaves chemical odour for awhile.

Hydrogen Peroxide and Isoproypl Alcohol (IPA) easily available online.

For me, I used the combination of all 3. Recently bought this Cleanbee for aircon solution which I think is caustic. Oso good but the odour lingers and needs to rinse and flush off to remove as much as possible.

And definitely never use boiling water, sure can damage the aircon plastic or pvc drain pipes. Not to mention scalding ownself in the process.

Wouldn't that cause health issues since you will be in a confined area with the air-conditioning turned on.

 

[mcylo]

Sohai…..he didn’t know there is a thing known as wet dry vacuum cleaner

 

[enimen]

If the plastic pipes melt or become weak, leading to leakage, good luck to u

 

[lalalalalala]

Wouldn't that cause health issues since you will be in a confined area with the air-conditioning turned on.

If u use chemicals, turn on the aircon in fan mode with max speed and open the windows

 

[mcylo]

Spray fins with bleach and let it flow down pipe. But smells of bleach for a while.

Can use 3% hydrogen Peroxide oso as it's odourless.

Or use 70% or 99% isoproypl alcohol to kill off algae that clogged the drain pipes but oso leaves chemical odour for awhile.

Hydrogen Peroxide and Isoproypl Alcohol (IPA) easily available online.

For me, I used the combination of all 3. Recently bought this Cleanbee for aircon solution which I think is caustic. Oso good but the odour lingers and needs to rinse and flush off to remove as much as possible.

And definitely never use boiling water, sure can damage the aircon plastic or pvc drain pipes. Not to mention scalding ownself in the process.

U can use alkaline cleaner. 4L less than $10

 

[franky]

• SimpleAir’s Clean Flow Tabs are a simple method to maintain free-flowing drain lines associated with all HVAC systems
• Unique tablets are time released when water activated
• Tabs prevent common growth in drain lines that could lead to clogging of drain lines and overflow
• Each tablet lasts up to 2 months

https://www.amazon.sg/SimpleAir-Clean-Drain-Treatment-Tablets/dp/B07S655LXW

 

[Comage]

Sohai…..he didn’t know there is a thing known as wet dry vacuum cleaner

It's not "don't know", like I say earlier it's usually the stingy-ass type of home owner who wants to do appliance maintenance without spending a single cent extra.

Truly ignorant people would not even know the aircon need to maintain and unclog the drip tray / pipes, let alone go and attempt to pour hot water down the tray/pipes.

 

[green72]

Wouldn't that cause health issues since you will be in a confined area with the air-conditioning turned on.

No, if you know what you are doing.
Ventilate the room by opening windows/doors and use fans.
I flush with continous RO water using my DIY 8 stage RO/DI unit of 800gpd capacity. Stainless steel fins tends to deteriorate using our tap water in the long run. SS and salts are not good.
I also use RO water to maximize dilution of the chemicals.

I like to delve in DIY stuffs, I know it can be a curse but I can't stop learning and wanting to try new stuffs through research and try.

I'm cursed to DIY everything and anything I can get my hands on.

 

[English Teacher]

No, if you know what you are doing.
Ventilate the room by opening windows/doors and use fans.
I flush with continous RO water using my DIY 8 stage RO/DI unit of 800gpd capacity. Stainless steel fins tends to deteriorate using our tap water in the long run. SS and salts are not good.
I also use RO water to maximize dilution of the chemicals.

I like to delve in DIY stuffs, I know it can be a curse but I can't stop learning and wanting to try new stuffs through research and try.

I'm cursed to DIY everything and anything I can get my hands on.

So you are one that wont engage prostitution?

 

[Emperor_Hippo]

The typical giam jee sai + dunno wtf he's doing spotted.

wet/dry vac, pop it onto the drain outlet, then turn on 20mins.

then tiap the cover, use low pressure on karcher pressure spray, spray and then use brush with a PH Neutral cleaner, scrub blower, spray, scrub and spray.

then once done, turn on wet vac, suck out all the residue water from the pipe.

settled.

 

[wanabfit]

If this works, aircon servicing would be out of biz

 

[Comage]

The typical giam jee sai + dunno wtf he's doing spotted.

wet/dry vac, pop it onto the drain outlet, then turn on 20mins.

then tiap the cover, use low pressure on karcher pressure spray, spray and then use brush with a PH Neutral cleaner, scrub blower, spray, scrub and spray.

then once done, turn on wet vac, suck out all the residue water from the pipe.

settled.

Pressure spray cost money... and time to use...

The type of people who just want to "boil water" and be done with it in 5 min - is too stingy to afford the money or the time in these routine maintenance activities...

 

[The_King]

use those pan tablet, every few week drop 2 to 3 tablet. get a wet vacuum and suck the pipe clean while pouring tons of water

is bleach, Hydrogen Peroxide, Vinegar and Isoproypl Alcohol damage aircon or corrosive to aluminum fins?

ChatGPT said:​

Here's a more focused analysis on whether bleach, hydrogen peroxide, vinegar, and isopropyl alcohol are likely to damage or corrode aluminum fins in an air conditioner:

---

1. Bleach​

• Corrosive Potential: Bleach is highly corrosive to metals, including aluminum. It can cause oxidation and pitting over time, which weakens the metal. This is particularly concerning for aluminum fins in AC units, as they are thin and delicate.
• Damage: Bleach can break down protective coatings on aluminum, causing corrosion and making the metal more susceptible to rust.
• Verdict: Definitely not safe for aluminum fins. Avoid using bleach on AC components.

---

2. Hydrogen Peroxide​

• Corrosive Potential: Hydrogen peroxide is a mild oxidizer. In low concentrations (3%), it generally poses minimal risk to aluminum, but it can still cause some oxidation or corrosion, especially if left on the metal surface for too long.
• Damage: While less harsh than bleach, hydrogen peroxide can still cause discoloration or damage if it is not properly rinsed off. Prolonged exposure could lead to pitting or weakening of the aluminum.
• Verdict: Use cautiously. While it's not as harsh as bleach, hydrogen peroxide could still cause some mild corrosion. Always rinse thoroughly after use.

---

3. Vinegar​

• Corrosive Potential: Vinegar is acidic but much less corrosive than bleach or hydrogen peroxide. It can break down mineral deposits and dirt on aluminum fins without causing immediate damage.
• Damage: If left on aluminum for extended periods, vinegar could cause mild corrosion over time. However, the risks are relatively low as long as it's diluted and thoroughly rinsed off after cleaning.
• Verdict: Generally safe for cleaning aluminum fins, but rinse thoroughly after use to avoid any long-term corrosive effects.

---

4. Isopropyl Alcohol​

• Corrosive Potential: Isopropyl alcohol is a mild solvent and is not corrosive to aluminum. It evaporates quickly and does not leave residue, so it’s usually safe for use on aluminum fins.
• Damage: There’s minimal risk of damage, but excessive use could dry out rubber seals or coatings if applied too liberally. It can be effective at removing oils and grime.
• Verdict: Safe for aluminum fins when used sparingly. Just ensure the alcohol evaporates completely, and there are no leftover residues.

---

Summary of Corrosive Potential:​

• Bleach: Highly corrosive to aluminum—avoid.
• Hydrogen Peroxide: Mildly corrosive—use with caution, rinse thoroughly.
• Vinegar: Mildly acidic but generally safe if rinsed off.
• Isopropyl Alcohol: Safe, minimal corrosive effects, use in moderation.

 

[Ronin881]

NEVER use hot water for AC pipes. you will spoil the seals between the pipe joints which will cause your pipes to leak within the walls.

It is like the Tengah syndrome, water leaking out of the water coolant pipes.

Contractor then blames HDB for poor quality work.