victoly

The apex jr does not have the capability to measure pH. The apex lite, however, does.

Cool story got even cooler. I am not advocating scrapping DI resin. Simply adding an additional carbon source prior to the RO membrane. I'll break down your post when I get some free time.

Cool story bro. I trust BRS, my test equipment, sampling methodology, career in the environmental industry and degree in hydrogeology to get me where I'm supposed to be in terms of chloramine in my tank. I may just swing by my lab i use to see if they can analyze a few samples with much more accurate equipment to verify my readings. Anecdotally, there are many local reefers who run plain carbon blocks forever with no issues. You haven't convinced me, especially with this statement. "That is most frequently used today as a source of chloramine is mono chloramine. This is the most difficult of all types of chloramine to remove, because the molecule size is so small it can pass right thru the RO membrane and right into the DI resin." Exactly, so we knock it out with GAC/CGAC before it even hits the RO membrane. Potentially a second GAC cartridge might give you enough contact time to knock it out prior to RO membrane. " This means that it can be too difficult for the activated carbon to break down anyway. And heres the killer. It predominates over other di-chloramines at pH levels over 7. Therefore all data obtained on RO systems eliminating chloramine may be irrelevant when mono chloramines are present ad predominate over 7.5 pH." Show me where you have found that GAC/CGAC won't break down whatever chloramine combo the city uses. I have experimentally verified the exact opposite of what you propose. In fact, from the national water quality association states: "New types of activated carbons (bituminous coal-based) have been developed with increased catalytic activity that are especially effective at the removal of chloramines. These new “catalytic” carbons are marketed with a peroxide number (rate of hydrogen peroxide decomposition) instead of the traditional iodine adsorption number. The chloramine removal capacity of activated carbon is dependent upon pH. Catalytic carbons have demonstrated increased chloramine removal efficiency at higher pHs. "

lookin mighty fine

tooo much bluuuueee

Our pH is generally well above 7.2 out of the tap.

I was there in spirit. I was wearing whatever spirits wear, a robe or something.

40 is really the absolute minimum you want to be running. 50 is recommended. It's one of those things, short term cost vs long term cost. <br /><br />In terms of pump cost, you could probably find one cheaper, but I've become a proponent of giving business to our sponsors for a product intended for the purpose of reefing.

Can you tell us more about the setup?model and configuration ? A picture would be very helpful as well.

Looks like anthelia to me.

Yeah, richardL is the guy who fits your bill. I love your tank btw, been stalking it on marsh for a while now. Cool to see you here.

your tricolor looks amazing mitch! nice deep purple.

seriously, these are the greatest fish you can buy. peaceful (although apparently not intra-species), interesting, constant motion, two thumbs up.

Been crazy busy at work. Talking to Dan is on my radar though.

I use an ATO from autotopoff.com which is on an apex controlled outlet. Zero complaints here. I'd use the tunze if I had the tank real estate.

I'm going to echo what jestep said. I would *not* mess with pH. 90% of the time, there is going to be a very normal daily swing in pH of up to 0.3 units. My pH sits around 7.8-7.9 on the low end of the daily swing, and everything is fine. Which store recommended you do this? Here's a little light reading on pH by the preeminent reef chemistry guy. http://reefkeeping.com/issues/2005-03/rhf/

How were raising the pH.

seriously, thats weird as hell.

Right on. Rory is a good guy.

Bump

I'd be in for a straight purchase if you don't mind coming south. Can meet at aquadome.

Check Crump's plumbing. Sometimes they have it in grey, usually white though.

Seems like a good thing to know, I'll get on it this weekend.