Hey guys I need some help. I've had this pump 3 yrs now. It's a 14 inch intex sf 15501 model. I noticed a continuous wet spot under the pump and filter. All connections are dry. My pool is a 16 ft summer escapes round pool. I'm having to add water every 2 weeks which messes up my levels. I also noticed that there is a continuous air bubble in the strainer pre filter. Any suggestions would be appreciated. ...