Dosing Kalk and pumps dieing?

[Anonymous]

I have a Kalk reactor that runs 24/7 for all my top off.

My CA stays at 450 and the Alk at 8 DKH.

I am starting to loose pumps.

I lost a Mag 9 a few months back. I lost a Maxijet 1200 a month ago and now loosing a Seio 800.

I have soaked all of these in vinegar and removed allot of buildup but the pumps still dont work.

The Seio stopped, I soaked it in vinegar and cleaned then it worked for a few days. Now I have to tap it or open it and close it to get it working again.

Is this a result of the Kalk? What should I do to keep from loosing pumps?
_________________
Mercedes C292

 

[liquid]

Are you soaking the impellor separately or just the entire pump?

Shane

 

[Bone]

Kalk sol'n is very caustic and it cakes things up quickly.

Like liquid said, you need to disassemble the pump and soak it.

I'm going to try one of those Tunze calcium dispensors. With these, the pump never comes in contact with the kalk sol'n.

 

[Anonymous]

Yes - I do seperate the impeller/pump. I even use a toothbrush to remove the residue. Another thing I noticed - especially on the Seio is that after soaking there is allot of play with the impeller in the pump
_________________
Sudden Infant Death Syndrome (SIDS) Forum

 

[Bone]

Rob,

There should be a good amount of clearance between the impeller magnet and the inner body of the pump but there should be very,very little play between the impeller shaft and the impeller but the impeller should always rotate freely on it's shaft.

 

[coastal]

try muratic acid it will clean away calcification. Beware of the fumes!! rinse well

 

[danmhippo]

In the old style of Mag pumps, there is a small black impeller shaft cap that gets lost easily if you open it up. Without the proper spacer, impeller grind the housing more often then before, and pumps dies faster.

Check the housing to make sure there are no grinding marks. If there are grinding marks, find out why.

I dose kalk 247 too. But didn't experience what you have.

 

[Anonymous]

Do your pumps impellers get covered with thick calcium build up?
_________________
Suzuki Wiki

 

[Bucktronix]

when you dose are you using a dosing drip container, kalk reactor or just mixing it into your topof? if your dripping it in chances are your equipment can't handle that much kalk at once. if it was coming in diluted in your topoff i think it might easier on your equipment. then of course your can't predict how much kalk your going to get.

 

[Anonymous]

It is a Kalk Reactor
_________________
history of recessions

 

[Tackett]

Sorry your having so many problems dude.

 

[DK]

My kalk reactor is a DIY so I am having a problem picturing the pumps going 24/7. Is the pump in the reactor chamber? I have a maxijet in the chamber that goes on a couple of times a day for 5 minutes to mix up the residue. On a seperate timer I have a dosing pump pushing top off water passively through the reactor to the sump(after the the kalk settles). Do you have a pump in the chamber that is also pushing the water to your sump?

 

[Bucktronix]

im pretty sure he is talking about the return pump.

silly maybe but if your kalk reactor tall enough? i mean the water that gets pulled from the reactor should be the clearer stuff from the top right? maybe you are getting to syropy a mix into the sump? i dunno just guessing here.

btw im about to have the same probs just resetting up and now with a new kalk reactor.

 

[Anonymous]

I have this reactor - http://precisionmarine.com/html/kalkreactor.html

I am talking about the dosing pump that runs 24/7. It feeds the tanks for a few seconds every 5 minutes.

The mixing pump runs 4 times a day for about 15 minutes.

BTW. The SCWD just locked up as well.
_________________
Health forum

 

[danmhippo]

I was using different setup from yours, and maybe that's why I did not experience the problem you have.

My kalk reactor is with magnetic stirrer. Kalk was agitated by a magnetic stirrer, no mechanical pump contacting the kalk water.

My dosing pump is a "litermeter", that has no mechanical part touching the kalk water as well. The kalk water pass though a soft silicon tube the the tube is squeezed by a rotator, pushing water into the tank. Sorta like a jello filled straw, and your fingers is squeezing the straw from the outside pushing the content out.

The main reason I chose magnetic stirrer type of kalk reactor with litermeter was to prevent mechanical failure of the pumps contacting kalk water.

 

[Anonymous]

Yeah, The Kalk mixing pump is fine.

I have the litermeter pushing the fresh RO into the reactor then that pushes the mixed water to the sump. The pums I am loosing are the in tank pumps.
_________________
Mercedes Benz C291

 

[DK]

After looking at the link, Are you waiting at least 45 minutes AFTER the mixing pump turns off before running the top off water?!!!!!!!!! They both should be on timers so the kalk/stuff can settle................

 

[Anonymous]

After looking at the link, Are you waiting at least 45 minutes AFTER the mixing pump turns off before running the top off water?!!!!!!!!! They both should be on timers so the kalk/stuff can settle................

No I do not wait. The dosing pump runs 24/7. The mixing pump comes on for 15 minutes 4 times a day. The liquid on the top off the reactor is pretty clear compared to the bottom of the reactor when mixing.
_________________
gremlin seeds

 

[DK]

Back to the original problen, is it corraline that is binding the pumps or the something else that may be getting in from the reactor? I will assume that the pumps exibiting the problem are in your display tank. If it is the latter, then get another timer and coordinate the intervals (30 to 45 minutes) for the dosing and mixing pumps (regardless of what you think you see through the acrilic reactor cylinder).