Ok,My first post,Just had my pool re-plastered and the guys that did the sandblasting broke the lens on the light in the deep end,they sent a guy out today and he replaced the lens and installed it back in the water.I turned it on and it worked fine but i noticed bubbles coming from it.At first just little bubbles and then it "burped" a big bubble and then back to little ones.I only get the bubbles when the light is on,nothing when its off.Is this normal? Is the heat from the bulb forcing air out somehow? Thanks in advance,Brian