Ok, I have been boating for most of my adult life and finally I will ask this question since I am stumped. Every spring when we fill the water tank it seems like there is all kids of ait mixed in on the hot water side. Seems to "foam" up for several tanks before it eventually disappears.

Question, does anyone know why it does this and if so is there an easy way to commision the system to minimise this. I asked a few people around the docks and everyone says it is normal so I cannot be the only one not to mention this was common on the last 3 boats I had including this Carver.

Finally launced her Saturday by the way. All snugged up in home port and ready for another season.