Came out for pond pump tripping gfci. Customer has stated that pond gfci has not tripped since initial call of issue. Pond did not trip until pump was hooked up. Explained to customer what gfci detects and also explained we do not Install pumps. Moisture is getting in pump wire housing which is causing the initial trip. Also while here existing pond light that we installed on 03/02/18 was not working. We replaced that light at no charge.