PVC in aquaponic certified farming
I read that you cannot use PVC mulch on a certified farm, but what about piping for the water and siphons in grow beds? can that be PVC and still get certified? if not, what other piping can i use?
Randolph County Arkansas
There are a few organically certified aquaponics farms. I am not an expert in orgainic certifications, but a search on the web provided some information. I am also providing the website of some certification agencies that would be a better source of information.
First I would like to direct you to the Organic Materials Review Institute (OMRI). They are the organization that material and devices must be approved through to be used in organic certification. They have two categories, materials and devices. Materials must be approved by the OMRI and have the OMRI label. Materials are something that is consumed or used up in the production cycle. Devices do not have to be OMRI approved in order to be used for organic production, but they do have to conform to the National Organic Program rules as interpreted by the National Organic Standards Board. A device is something that is not consumed or used up such as rafts, PVC piping, liners, stainless steel pumps, etc) The OMRI provides an updated list of products for organic certification and you can find it at http://www.omri.org/omri-list. Another list is The Generic Materials list. This list is available at http://www.omri.org/omri-lists. For more in-depth answers I suggest you contact one of these agencies that have experience in certifying organic aquaponic farms: Oregon Tilth (http://tilth.org/ on the web) and Organic Certifiers (http://www.organiccertifiers.com/ on the web).