Does the job well. By Atoll on 10/3/2016
Atoll would recommend this product to a friend
Been running my new AM Kalk reactor for a few monthss now and experienced non of the issues some appear to have had. No leaks and right sized tubing. Only down side is whoever fitted the check valve fitted it the wrong way round which stopped my RO topup water going through it. The reactor cost considerable less than the similar Deltec one so represents GVFM. I would have given it 5 stars if they check valve had been fitted the right way round.
Works but poor quality control By Jim on 4/26/2016
Jim would recommend this product to a friend
Like others I basically had to replace tubing. The feed line assembly (one with check valve) was cut too short and it leaked because it could not fully engage with the murlok fittings. Beyond that I had sufficient parts around to get it hooked up to my Tunze ATO feed line. Its been a while but pretty sure I had to replace the return hose as the one included didn't fit.
Otherwise it works as advertised but it remains to be seen how long that hot running motor lasts. So far its near silent in operation. For the simplicity of this unit and the materials used its pretty well overpriced. Its a stretch to say its worth even $200 let alone its $300 plus price tag,
good stirrer By Bruce on 3/21/2016
Bruce would recommend this product to a friend
As others have stated the inlet line pre assembled is too short and will leak, the 1/2 line supplied for outlet will not fit onto hose barb. I fixed mine with items I had on hand, for the money what is supplied should work. only my second day but it seems to be working as stated, if not for the wrong size tubing supplied I would give it 5 stars
So far so good By Aqua medic kalk stirrer on 3/21/2016
Aqua medic kalk stirrer would recommend this product to a friend
Inlet tube from top to bottom was too short and was not seated, 1/2 tubing was wrong size , was able to fix with items I had on hand. So far appears to be working but only up one day. If they had fixed it based on all the complaints it would be worth five stars and maybe the price, should be able to use as shipped for the money.
Leaky shoddy design By Bob on 5/30/2015
Bob wouldn't recommend this product to a friend
Could not get the inlet connection assembled without leaks. Inserted the supplied soft vinyl tubing into the MurLok style quick connect. It leaked. Tried 1/4" polyprop tubing. Could not get it fully engaged. Thought the unit was defective. BRS of course promptly replaced it. Replacement had the same problem. The unit uses tubing on the side that is .010" smaller diameter than the standard. Finally got it engaged by putting some silicone o ring grease on the end of the tube. Then both of the quick connects on the side leaked. The pieces had been cut too short, and were not fully engaged.
O-rings on the top and the outlet shipped dry with nothing said about greasing them. The meagre instructions recommend 2 coffee cups of Kalk shaken with water to charge the stirrer. I had to write to the manufacturer to find out that 2 coffee cups is 8 oz. of dry kalk powder. Unless you enjoy this kind of misadventure, I'd sincerely suggest a different unit.
Self inflicted issues By Frank on 1/31/2015
Frank would recommend this product to a friend
Now that I have had this running for a while I love it. I was really tired of mixing a 5 gallon bucket every week, and all the mess that came with it. I have a 150 with a 25 gallon sump and a 30 gallon frag tank all plumbed together. I do a constant drip with a Drew’s Doser which drips a little over 5 gallons a week. When I set up the stirrer the first issue I ran into was it leaked at the fitting where the inlet fitting goes into the cylinder. The leak was where the push connect tubing goes into the fitting. After messing with it for a while I determined the hose was too short to reach between the fittings and fully engage. After replacing the hose with a slightly longer hose all was well. The second problem was I just could not get any flow through with the Drews doser. I soon discovered that was because on the usual problem. I didn’t follow directions. When I filled the cylinder I just added 2 cups of dry Kalk instead of mixing it with RO and pouring the slurry into the cylinder. Dry Kalk packs in the hollow inlet part of the stirring shaft and a Drews doser just can’t push it through. So follow directions and mix the Kalk into a slurry first then add it to the stirrer.
Great and easy to use By Vern on 3/16/2014
Vern would recommend this product to a friend
I had a different kalk reactor and I just fought and fought to get it to work just right. after dealing with it for a year enough was enough. I got this stirrer and hook it up to my ATO and is controlled with my Apex and all i have to do is keep kalk power in it and i'm set no more wondering if its going to crash my tank. It awesome just wish i had this the first time around so i had more time with my tank and not the reactor all the time.
Great Stirrer By Justin on 11/17/2012
Justin would recommend this product to a friend
I've had this Kalk reactor running on my tank for more than a year and a half. The only problem with it that I've had was the stirrer cracked where the screw attaches it to the motor at the top. I had to buy a new stirrer. Other than that it's been great.
Good product By paul on 7/19/2012
paul would recommend this product to a friend
I have had this product for about 2 years. I love having it and find it a great way to add Kalk to your tank. It works really well although it has jammed up a few times and I had to force the shaft to get it to start turning, also I have had it squeak from time to time for extended periods, not too loud. I am using it with a Tunze Osmolator and it does a great job. you have to be careful though. If you have a small water leak or if you start doing a water change before you unplug the Ozmolator it will put concentrated kalk into you tank really fast. A controller would probably negate that possibility. All and all I would recommend it.
Good product...a little pricey By Bob on 5/14/2012
Bob would recommend this product to a friend
The product works as described and doses the kalk as needed with the top off system. It seems to be a little expensive for the materials used but it works.