Re: Mold on carpet, hard to get off
MOLD KILLING MIXTURE (except DEEPLY ROOTED mold colonies) -
Works on all mold and fungus - this is a very strong mixture ratio
1 quart white vinegar
1/2 quart water
1 cup 35% hydrogen peroxide
http://www.dfwx.com/h2o2.html
1 cup boric acid
Home-Brew Water Solution of Borates:
All percentages for this recipe and the others here are percentages by weight. Based on U.S. Navy spec. of 60% borax-40% boric acid (this ratio gives the maximum solubility of borates in water); 65% water, 20 %borax, 15% boric acid; 15.8% borates; borax costs 54 cents/lb. (supermarket), boric acid costs about $4/lb. in drug stores (sometimes boric acid roach poison, 99% boric acid, is cheaper in discount stores); equiv. to Tim-Bor? or Ship-Bor? at 30 cents/lb. To make this solution mix the required quantities and heat until dissolved. The boric acid, in particular, dissolves slowly. This solution is stable (no crystals) overnight in a refrigerator (40?F.), so can be used at temperatures at least as low as 40?F.
Home-Brew Glycol Solution of Borates:
This is equivalent to Bora-Care? diluted with an equal volume of glycol to make it fluid enough to use handily; 50% glycol antifreeze, 28% borax, 22% boric acid. To make a stable solution you mix the ingredients and heat till boiling gently. Boil off water until a candy thermometer shows 260?F. This removes most of the water of crystallization in the borax. This solution is stable at 40?F and has a borate content of 26%. With antifreeze at $6/gal. and borax and boric acid prices as above, this is equivalent to Bora-Care? at about $15/gal.