We are about to do a major track redo and I'm looking to put a sprinkler system in place hopefully at the same time depending on cost. Right now we have four tanks (I think they are 250 gallons each) and a gas operated pump from Tractor Supply, a 2 inch hose with a firehose type nozzle on it. We can water the track in about 5 minutes total, but as mentioned earlier some areas usually get over watered, and some get underwatered. One drawback is where we are at there is no water so we have to trailer one tank about 5 miles to a boat launch and fill the tank up, then come back and pump it into another tank until they are all full.