2 inch valve opening

I have two plastic tanks with 2 inch openings. I have all the parts I need to downsize but a piece of 2 inch tubing about a foot long . Dealers want $7.10 a foot and plumbing supply stores don't sell by the foot. I have some gray 2 inch conduit left over from a electrical job. Do you think it would be all right to use a 6-8 inch section? I know it's not food grade. It will go on the tank in the sugar house and will only be used with sap.
Thanks

[oldemaple]

There should be no problem using the conduit, as long as you clean it well after the season.

[WESTVIRGINIAMAPLER]

I think Lowes sells 2" tubing and I know it is not that expensive. I bought 1.5" food grade specifically listed for maple syrup from US plastics for less than $ 2.00 @ foot, but they do sell it in 10' increments. Lowes had the same stuff, but wanted a little more for it but they will sell you any size piece you want. :D