I forgot all about the water tank issues! That was something I was going to keep an eye on and check into. The mind is a terrible thin to waste. Those hatches are Bomar. One is 16.5 square and the other 13.25 square. Thought they might brighten the place up a bit and move some air through. They are 'seconds' we snagged from Pompanette LLC. Miniscule cast flaws on the spigot that won't show and won't cause problems sealing. Just reaping the benefits of a wasteful society(saved about a case of Glen Livet)or...er...so. But I've sworn to give up my vices for a better boat . Wish we had a yard near here to reap the benefit of experience. Ten minutes of conversation can reveal a whole lot more than ten minutes of reading! That sounds bad-strike that note Tony G