I have available a pair of used Vortech MP40W with battery backup. Date of mfg 6/30/11 wet sides are replacements with about one year of use on them. $300 shipped. PayPal only please.
I just looked at one I have laying around and it's not marked as I mentioned, but it is marked "NSF61" which is another standard rated for potable use.
If it's Schedule 40 or Schedule 80, it will be clearly marked so somewhere on the valve body. It would mean it's rated for potable water, so no problem, it would have to be a food grade lubricant.
You might need a new gasket. Or you might need to pull the one you have completely out and reinstall it properly. It probably got a bit out of place when you removed the motor housing and then got pinched or twisted when you reinstalled the housing.
It's just an excess of dissolved air. It sometimes occurs due to water in you plumbing system being under pressure. The pressure can allow a level of dissolved gasses above that allowed by normal atmospheric pressure to be dissolved in the water. When the water hits normal pressures the excess...
You know what, I already know both the answers you're feeling and those you would choose to give. Slappy go ahead and close this thread. I have no more use for this guy.
It's taking you an awfully long time to answer 2 simple questions Chris.............What was your motivation for getting so worked up over this if you weren't really arguing, and what is your conclusion regarding adult artemia being nutritionally void?
Nice start! I don't think you really need the CO2 with your present lighting. Excel would do nicely, but you are now well positioned for the inevitable upgrade! Btw you want to do a 2 point calibration, so some 7.0 cal solution would be a good idea.