Just opened my pool this weekend and got everything ready to go. Water temp was 52 and turned the heater on. I noticed the first half hour or so there was water leaking from the bottom of the heater. Could this be condensation? Is it a big deal? The heater has been going for about 20 hours and has not dripped apart from that first half hour. I'm a bit paranoid since I had to replace a 3 year old heater last summer. This one might have been operational now for 2 months.