Depending on how much ground you have to cover you’ll either want a larger or a smaller tank. We see sprayers anywhere from 5 gallons all the way up to 26 gallons being mounted on ATVS.
The most important thing to remember is how much a fully loaded tank is going to weigh. A gallon liquid weighs about 8.34 lbs. So, if you’ve got a fully loaded 26 gallon tank that’s about 217 lbs. Which is going to make your ATV real light up front. If it does feel light, it’s not a bad idea to try and counter that weight with a rock or something.
If you’d rather not have that much weight on the back of your ATV, tow sprayers are a great alternative.