"Bruce Napier" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] Apologies to Pete S on canals-list for this one:
We had a debate across both these lists awhile back about descaling toilets, with the conclusion that strong organic acids such as citric were the answer. Since then, LeeSan have produced a descaling fluid which is basically strong phosphoric acid, and I've been trying it for the last six months. I have to say that it does the job, both for toilets and other places where mineral deposits are unwelcome, such as kettles. You are recommended to use it at 10 - 20% dilution, but I've just used some neat on some stubborn scale on the base of my stainless steel kettle, and it was remarkably fast (as in, slosh 20 ml or so around gently and watch the scale dissolve.) It claims to be biodegradable, which I guess it is, eventually; just remember that your skin is certainly biodegradable under assault from strong acid and wear rubber gloves and eye protection whilst handling it (said it for you, Ron!) --------------------------------------------------- What would be the effect when it's emptied into the tank? Instead of blue I use an organic digester which works really well, and I wouldn't want to risk killing it off. -- Allan Jones - N/B 'Keeping Up' www.keeping-up.co.uk
