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Question from R. G.

I was wondering if you know of a safe nontoxic garden hose, one that doesn’t leach any toxic chemicals or plasticizers into the water?

Debra’s Answer

All garden hoses are made from either polyvinyl chloride “PVC” or “vinyl”, rubber, or a combination of the two.

Vinyl hoses are the least expensive but also the most toxic, both in use and in manufacture. A number of environmental groups have called even for the banning of PVC because of the environmental effects of its manufacture. And PVC can leach vinyl chloride, which is carcinogenic. How much vinyl chloride ends up in the water as it is rushing through a hose? I don’t know. Probably more leaches into the water sitting in the hose in the hot sun. For that reason, it’s probably a good idea to empty the hose after you turn off the faucet.

As far as I can tell, rubber garden hoses are made from natural rubber, the milky latex of the Hevea tree more about obtaining latex from the tree Though it starts out from a renewable plant resource, by the time it is processed it is anything but natural.

Many chemicals are added to natural latex to improve performance, making natural rubber latex suitable for use in the manufacture of rubber products. Chief among them are chemical accelerators used to speed up the manufacturing process, vulcanizing agents, reinforcing agents, filler, pigments, blowing agents and more some exact chemical names In terms of toxicity, the most dangerous health effect I found was skin allergy.

Whether or not the chemicals in natural rubber hoses leach into the product water and what their toxicity may be, I don’t know. Though rubber hose is heavier and more bulky, it is your best buy for durability. Sears says their Craftsman Rubber Hose is the last garden hose you will ever need to buy. Rubber hose is also more pliable and coils more easily in cold weather than vinyl hose.

Rubber hoses are easily available. In addition to Sears, both Lowe’s and The Home Depot carry rubber garden hoses, and most good nurseries will as well. Rubber hoses say “rubber” on the label. If no material is specified, it’s probably vinyl.

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