Carterpratch

Hey guys. I have a 15 Silverado 1500. While ago I drove threw some water and it was fine for a couple miles parked it and service power steering came up. And no power steering. Figured I’d let it dry and next morning it had worked fine for about 150 miles then would cut in and out and now I have absolutely no power steering and it drains my battery fast like it will be dead within 5 hours. Anybody else have a similar issue and if so what was it? Just looking to see some imput and what I could possibly be thanks