Woke up this morning to it being 51 in the house. Went out to check on the 1000 gallon tank that was filled in July and it’s empty. I never use more than 500 gallons all winter so major leak somewhere. Spray checked all fittings and nothing, pressure checked main line and won’t hold pressure so it’s broke under ground somewhere. So now have copper tubing laid out from my tank to house in my backyard. Gonna be awesome to trench that in next summer while trying to dodge sprinkler system. What a great start to the week.