1 cup Borax
1 cup Baking Soda ******changed to washing soda and have better results
1/2 cup Coarse Salt
1/2 cup citric acid (I actually used 15 packets of unsweetened lemon kool-aid- it was easier to find!)
Mix all ingredients in a container. Use 1 tbs per load.
It is also recommended to add vinegar to your rinse aid dispenser to alleviate cloudiness. I only use vinegar in my rinse dispenser anyway so I figured I was 1 step ahead of the game.
We figure there are about 48 uses in that jar.
I already had the Borax but that runs about $4.29 a box for a 4lb 12 oz box (the last time I bought it at Target anyway)
Already had the baking soda and that is less than $1 a box
Coarse Kosher Salt: $1.48 for 1lb
Citric Acid would have prob cost less than the kool-aid, but that was what we could find: $3.00 for 15 packets
It works out to under $4.00 for 48 loads of dishwasher detergent (including the vinegar as a rinse aid).
That's less than 8 cents per load!