From the MD Outdoor Cage Dressing tutorial:
Regular garden hoses are not safe for drinking water, as they are made of recycled materials (recycled PVC with lead stabilizer). As the hose sits in the sun, lead leaches into the water. People may get cancer from this source, and a melleri watered with such hoses died of a rare cancer in 2005. We now know recycled hoses are a health risk, so please use only hoses described as the following:
boat/camper hose for drinking water
potable water hose
motorhome hookup drinking water hose
drinking water safe hose
100% virgin materials drinking water hose
A search for these on Amazon or Google will provide you with specialty retailers, or you can call local campgrounds and boat docks for suppliers. The safe hoses are NOT available at WalMart or regular hardware stores. Read the card of the hose carefully; the only warning some hoses give is, "this product is not labeled for sale in California". Some garden hoses only have a "not for drinking water" message molded (without ink) on the plastic cuff.
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That was my foundation female that died in late 2005. Here is the link that isn't showing up in the above quote:
http://www.cehca.org/news.htm scroll down to Aug 9, 2004
Since the above was written, WalMart stores now DO CARRY potable water hoses, in the 25' size, but you have to search for them. Sometimes they are in automotive, or with camping gear. The safe hoses are NOT displayed in the garden centers.
Apologies for the thread hijacking...