calcium reactor install question

[conundrum]

I am setting up a new tank. Instead of a powerhead in the sump deadheading to the reactor to keep it full, can I "T" off my RO line to the top off valve. It has a PH of 7.0 and I expect to add aprox 1 gal or more a day evap water anyway. I am unsure if a reactor output adds up to more than the makeup water. It's a 110 tall with a 25 sump. I have never heard of someone doing this, (probably a reason) but it would make the install easy, reduce heat, save money, more room in sump, and start with a lower PH.
The only down side I come up with is, I was planning to connect the feed pump and CO2 solenoid to same x10 module so the aquacontroller would cut CO2 and reactor drip at the same time if PH minimum was tripped, would have to get another solenoid to keep that option. Also RO line pressure will reach 45-55 psi, that may exceed what the reactor is built for, but I have no idea of the pressure output of a powerhead deadheading. I welcome your thoughts/experience on this matter and as always, thank you for your time.

 

[Anonymous]

Do you have a kalk reactor or calcium reactor?

The lowest maintenance, most reliable way to do things IOM:

Fresh reservoir to pump to reactor. RO enters fresh reservoir and level is controlled by float valve/solenoid.

electric float switch (ultra-life) in sump that trips reactor supply pump on/off. This will maintain a constant sump level, salinity and depending on evap rate, all the other params: Ca, pH, Alk.

If evap rate isn't high enough so that reactor output volume isn't high enough to maintain pH, Ca, Alk, put a fan blowing directly onto the sump's water surface. This may make your heater work harder, but, oh well.

If you're using CO2 as a means to limit high end pH, I would shrink your range down, or else the two will be in constant battle, result will be an overall steady-state lower pH.