Aquarium suppy places have some of the best prices for UV lights. Check online. I bought one from a place in Calif. and hooked a small submersible fountain pump to it and just keep recirculating the sap from bottom to top through the type of light I bought and on warm days, (say around 50) I have kept sap for a day or so, that boiled out light amber. I used a small pump because the light is rated for a certain flow to achieve good bacteria kill. I think at the time I bought my light I paid $125 and a comparable preforming light at a maple dealer at the time was $699.00.I say comparable because they both flow the same but my light has a plastic housing, where the dealer one is stainless. If for some some reason you have to store your sap for an extended time (and I'm not saying 3-4 days but then some have) the light will keep the bacteria down, for sure. Check the Proctor Maple site for research they have done on UV lights.
Last edited by Homestead Maple; 10-27-2009 at 10:02 AM.
1,200 taps on USFS land, 3x8 King w/Steamaway. Lapierre RO.