Top positive review
Great Raw Material For Cost Conscious Home Owners with Hard Water
October 4, 2016
We use this citric acid in three ways in our home and it works great. We have hard water and all three uses help limit the nuisance of hard water residue.
First, we use it in our dishwasher as a direct substitute for Lemi-Shine. It works just as well to prevent spotting of dishes from hard water at 1/4 the cost. Use it in the same quantity as Lemi-Shine.
Our second use is as a spray for ceramic tile in the shower to prevent hard water residue in the shower. For this use, we mix 2 TBSP of citric acid in 1 quart of plain white vinegar and spray lightly on tile and grout after showering. It works amazingly well to neutralize the hard water alkalinity and prevent build up of hard water residue. Only very infrequently now do I have to scrub grout lines with a stuff brush to remove hard water buildup on grout lines. Much less expensive than shower sprays you buy in the grocery store for the same purpose. But it is a little strong smelling (though not a bad smell) in case you have a sensitive nose. It smells rather like a mix of vinegar and vitamin C tablets. For this application it might work just as well diluted a little with some distilled water, but I've never tried it.
Our third use is for the same citric acid and vinegar mix described above - but for the periodic cleaning ceramic tile grout lines. Spray the solution generously on grout lines, let sit for several minutes, then scrub with a grout brush. It still isn't a super easy job, but it works very well to soften and remove hard water stains from grout. It is low cost and more effective than most grocery store cleaners. For a grout brush, I really like the "Groom Mini Shark Grout Cleaning Brush" also sold here on Amazon.com.