Where do you get vision from? How much is it ? How much would you put in a 650ltr tank? Cheers dale
250 ML Bottle is £15 plus postage.
On 650 tank I would use around 3Ml
So would last you a fair old time if you used 650L A day.
Today I ran an 850L tank dry on my own and towards the end I was getting EXTREME bubbles. Doubt it was air. I don't think vision mixes well in Grippa tanks tbh.
Search for jigsaw innovations in Google