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Price: $311.00 Sale Price: No Price Prod. Code: ACKA0006

At Precision Marine there are two ways Calcium can be added to your reef tank, the Calcium Reactor or the Kalkreactor pictured here.  You can either gravity feed through the Kalkreactor from a freshwater top-off system to your reservoir, or use a dosing pump. We chose a reliable water pump in lieu of the magnetic stir bar, which tends to jam, bind and wear the acrylic. Our model also includes a threaded opening at the top to enable adding Kalk powder without removing the lid. Master fabricated and computer cut, the KR620 is a very nice piece of equipment.

	~ KR620  Specifications ~

	KR620 Overall Height 20" Reaction Tube Diameter 6" Reaction Tube Height 18" Base Diameter 7.75” Water inlet and outlet size 1/4" Polypropylene tubing Method of feeding Gravity or Pressure Supplied Water Pump Maxi-Jet 400 Warranty: 1 year from date of purchase.

Made in U.S.A.

Kalkeactor KR620 Instructions / Use and Setup
Kalkwasser when first mixed has a pH of around 12 and a very high calcium content. Unfortunately, in conventional kalkwasser drippers, the kalk reacts with atmospheric CO2 and precipitates out into calcium carbonate which is pretty much inert. The side effect of this is, by the time your kalk is done dripping, it's not nearly as potent as when you began. This is where your new Precision Marine Kalkreactor comes in. The unit is sealed to keep CO2 from reacting with your kalkwasser, so that saturated kalkwasser liquid is constantly dosed into your aquarium.
General:
Method #1
In addition to your Precision Marine Kalkreactor, you will need a dosing pump or feed method, and a timer (preferably digital). Dosing pumps that can be set for a drip rate to match your evaporation work quite well.
Water Feed
Method #2
The other method is to gravity feed the reactor with a container of r.o. water located above the kalkreactor and reservoir. You will need to use a float valve in your reservoir. Simply connect the 1/4” polyethylene tubing from the r.o. container to the kalkreactor, then to the float valve. As water evaporates from your system, the float valve will maintain a constant water level in your reservoir using the r.o. water through your kalkreactor. Mix up a kalkwasser slurry using 2 or 3 cups of kalkwasser powder mixed with just enough r.o. water that you can pour it through a funnel. Open the port on the top of the unit.
Place a funnel in the open port on the top of the unit, and pour the kalkwasser slurry in. How much you add to the unit is up to you, but 2 or 3 inches of powder to the bottom after it settles out is plenty.
Fill the reactor to within an inch of the top with r.o. water. Close the port on the lid. Hook tubing from the dosing pump (or r.o. vessel) to the input connector (the connector with the line that goes to the bottom of the reactor).
This way your fresh r.o. is added right at the level of the kalkwasser powder to insure saturation.
Connect tubing from the output of the reactor and run it to your sump and secure it in some manner so that it can drip into the water (or to your float valve). If the line is submerged, the kalkwasser will tend to precipitate around the opening of the line and clog it, preventing proper dosing.
Now that everything is hooked up, you need to set your timer to run the circulating pump. The pump will need to be turned on 3 or 4 times a day for 10 or 15 minutes to circulate the kalkwasser powder inside the reactor to ensure saturation of the liquid. It is not necessary or desirable to run this circulation pump continuously. Now that all connections are made and the timer is set, plug in the reactor pump to the timer, and start up your dosing pump. The reactor will now finish filling and begin dosing saturated kalkwasser into your aquarium.

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