The only issues I've seen with them is the tendancy to use inverted maxijets that don't have good fittings around them and may develop leaks. Some brands use small Mag pumps or eheims, but the maxi jet is actually very nice because it is very cheap to replace if the pump fails. And considering the on off conditions and the water that it is pumping, failure rates are probably on the higher side.
Second depending on the brand some have a tendancy to pump the slurry mixture into the tank instead of the clearer mixture near the top.
Finally make sure to get one that has a built in drain valve to make maintenance easier and adding new kalk easier.
What do you guys think of the GEO kalk reactor? It has a built in drain valve and uses the maxi jet. How much kalk capacity should I look for in these units? I've got a 75 gallon with a few SPS colonies. I don't have any plans to implement a Calcium Reactor. I've been buying equipment big for my system for when/if I upgrade to a 120+ gallon. With that in mind, would this reactor work?
Kalkwasser Reactor by GEO*
CR-GEO-KALK
All Cell Cast acrylic construction
* Side mount pump
* Easy fill top for kalk replacement
* Drain valve for testing and filling
* Dependable Maxi-Jet stir pump
* Use with your top off system to replace evaporated aquarium water with kalkwasser
* 7x12 foot print, 22" tall
The world famous GEO kalkwasser reactor!
Our kalk reactors are fabricated using only the finest cast acrylic materials and high quality fittings.
Designed with the user in mind, we feel these are by far the easiest reactors on the market to install, operate and maintain. Easy fill fitting on the lid for adding kalkwasser as needed. You only need to remove the lid for cleaning the reactor.
Drain valve allows you to lower water level in the reactor when adding fresh kalkwasser. You simply remove water from the reactor into a container of kalkwasser, stir it into slurry and pour it back into the reactor through the easy fill opening.
The dependable Maxi Jet stir pump mixes the powder in the chamber; there is no chance of powder exiting the reactor, even if the dosing is pumping water through the reactor as the pump is mixing.
$239.95
Thanks and God bless,
Disciple