Dewatered 45 gallon batch of wvo that titrates 10.5 KOH. Heated to 140 F for 2 days and circulated about every 6 hours to dewater. This morning I took and added 250 ml. Rooto acid to 5 gal. methanol. Added acid very slowly to methanol because I could hear a sort of growling sound if I added it to fast. Took about 1/2 hour to inject mix and was done at 8:30 . 10;45 drained a little sludge and blended for about 10 minutes ,took sample . Titrates 5.5 KOH, so its working. Going to check in a couple more hours to see if it drops some more.