Draining Carbonic Acid - Plumbing - DIY Home Improvement | DIYChatroom

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


Thread Tools Display Modes
Old 10-07-2010, 08:05 AM   #1
Join Date: Oct 2010
Posts: 1
Rewards Points: 10

Draining Carbonic Acid

First time post:

I have a high efficiency furnace and the carbonic acid is draining through a plastic tube to the center basement floor waste drain. The sump pump pit is located on the far side of the long basement.
Due to some water/waste backup and the basement now being finished, i have purchased a plumbingsupply flood guard float model

I assume the acid dripping onto the float will corrode the metal or the rubber float ball over time, so what's the best way to keep a valve and/or neutralize the acid? There is about a 3in space above the float valve in the pipe and surface of the floor. I suppose i could lay down a fine screen and pour some lime pellets in huh!!



justintbrown is offline   Reply With Quote
Old 10-07-2010, 09:27 AM   #2
Join Date: Nov 2007
Location: Nashua, NH, USA
Posts: 7,965
Rewards Points: 1,536

Carbonic acid loses its potency when exposed to the atmosphere. Collect it in a wide pan near the furnace with an overflow tube leading to the drain.

You could neutralize the acid with baking soda or lime but the compounds generated in this process are equally corrosive (like salt on the metal underside of a car) as the carbonic acid itself which is actually a very weak acid compared to other acids like sulfuric acid.

Carbonic acid is what gives the fizz to soda pop.


The good conscientious technician or serviceperson will carry extra oils and lubricants in case the new pump did not come with oil or the oil was accidentally spilled, so the service call can be completed without an extra visit.

Last edited by AllanJ; 10-07-2010 at 09:38 AM.
AllanJ is offline   Reply With Quote
Old 10-07-2010, 10:42 PM   #3
Plumb or Die!
Join Date: Oct 2010
Location: BC, Canada
Posts: 321
Rewards Points: 250

I'd go to a furnace supply place and buy an acid neutralizer kit. It's a 8"ish long piece of pvc pipe with threaded caps on each end, filled with limestone chips. The caps have 1/2" female tappings. Every hi eff boiler I've ever put in has one, and you really need to have one. You have to get new chips every year or two, plumbing systems aren't meant to dispose of acids.
plumber666 is offline   Reply With Quote

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
Concrete: Top Cast vs. Acid Stain/Wash sportinwla Landscaping & Lawn Care 0 07-09-2010 02:15 PM
Concrete Acid Coloring Taipans Landscaping & Lawn Care 1 10-09-2008 06:45 AM
Washtub draining into floor drain DIY? Because we LOVE you Plumbing 2 08-26-2008 09:48 AM
Portable air conditioners; who's got one? (No draining! Yet most say draining req'd?) Deck Appliances 1 07-16-2008 10:33 PM
Rain water draining into sump pit ERIK2173 Building & Construction 19 07-20-2007 09:19 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1