Boiling Water

[Sheridanp]

So, lowering KH can be done by boiling water and then adding it? Do I have to de-chlorinate the water if it is boiled?

 

[andywg]

Nope, by boiling water for 5-10 minutes and stirring it while you do so you get rid of both chlorine and chloramine.

 

[TwoTankAmin]

Umm....
From: http/www.ci.mtnview.ca.us/citynews/chloramine.htm

What can aquarium or pond owners do to remove chloramine?

Households, restaurants, and commercial fish tank owners will need to change their current chlorine removal process to remove chloramine. The appropriate dechloraminating products or carbon filtration equipment for removing chlorine and ammonia will be available in most pet and aquarium stores prior to the conversion.
Home remedies such as boiling water, using salts, and having water remain still are not effective methods to remove chloramine. Unlike chlorine, which only takes a few days to dissipate when remaining still, chloramine stays in the water for a few weeks. The best way for fish owners to remove chloramine is to use a conditioner that contains a dechloraminating chemical.

 

[Sheridanp]

I actually want to know if it will lower my KH, and how much will it take to?

 

[WILDER]

http/www.drhelm.com/aquarium/chemistry.html

 

[andywg]

Umm....
From: http/www.ci.mtnview.ca.us/citynews/chloramine.htm

What can aquarium or pond owners do to remove chloramine?

Households, restaurants, and commercial fish tank owners will need to change their current chlorine removal process to remove chloramine. The appropriate dechloraminating products or carbon filtration equipment for removing chlorine and ammonia will be available in most pet and aquarium stores prior to the conversion.
Home remedies such as boiling water, using salts, and having water remain still are not effective methods to remove chloramine. Unlike chlorine, which only takes a few days to dissipate when remaining still, chloramine stays in the water for a few weeks. The best way for fish owners to remove chloramine is to use a conditioner that contains a dechloraminating chemical.

Indeed, hmm...

http/www.newton.dep.anl.gov/askasci/gen01/gen01377.htm

A simple and effective way to remove chlorine and chloramines from tap water is to boil it for 5
- 10 min. No chemicals needed. Be sure to let the water cool and stir vigorously because the
boiling will also deplete oxygen from the boiled water.

I would dispute your source as the chemicals that work on chlorine also work on chloramine. Sodium thiosulphate (the active dechlorinating chemical in water conditioners) works just as well on both. The only difference being that it leaves a trace amount of ammonia in the water when used on chloramines (but nothing an established filter can't handle). Your quoted source seems to contain a whole lot of misinformation.