Geoff Schultz wrote:
I'm in the enviable process of replacing my head hoses due to calcification
(or whatever that &*@# is builds up in there). I was quite amazed at how
small some of the 1.5" hoses had become. Some were easily down to 1/2".

Anyhow, I was talking to a friend of mine who has their head plumbed with
fresh water and he was claiming that his hoses don't calcify. Can anyone
vouch for this?

-- Geoff
www.GeoffSchultz.org

Seawater + urine - calcium carbonate

http://www.navair.navy.mil/techTrans...aB&doc=paper.5

If it happened with fresh water toilets, used for billions of flushes a
day, one might think it would have been noticed.