So cool to read these posts.
Right now I'm adding 150mL of each 2 part per day. I make my solutions from dry chemicals based pretty closely on
RHF's recommendations. I buy additives from Neptune, or get them from other BAR members - thanks
@bee505 . I run my ATO through a kalk stirrer on my 70 gal. While this is working, there are a few reasons I'd like to move away from this method: The amount of 2 part I add is raising the salinity between water changes, the amount of kalk dosed depends on evaporation which changes with the weather, I'm going to have a few deresa clams in my refugium (30 gal display fuge which is not plumbed yet, but the clams are in my DT now. Not that this involves clams, but I'm going for something
similar to this with my fuge), and as they grow, the amount of Ca/Alk they consume will only increase.
I've read through the RC posts about masterflex pumps, and those do seem like the way to go. Cost, not so much the issue (my
used AP700 was more expensive), it's more about making sure I get the right piece of equipment and have the room for it in my setup - this is one of the reasons the Skimz is appealing - they claim no peri pump needed... But the point about a needle valve clogging is well taken. For the CO2 reg,
this thread from a while back inspired me, and I was planning to do something like that. Funny, it seems like the investment of going to CaRX is more about the feed pump and regulator than the cost of the reactor. At least those two items should scale to whatever setup I may have in the future and should last a long time.
The more I think about it, the more I feel like I need to accept the price/inconvenience of entry and look for a small-ish reactor that will fit in my sump. And, more importantly, start looking for a good feed pump and assembling a regulator.