Fleck 5600SXT Filling Brine Tank During Rapid Rinse

[imadunatic]

Any ideas? Installed the system 2 weeks ago, seemed to be ok and this morning we woke to salty service water (which was the reason I replaced the 15 year old kinetico, it required constant cleaning otherwise you would have brine in the service water every time it regen'd).

My investigation revealed about 16" of water in the brine tank so I dumped it out and cycled through each phase to determine what was going on, to my amazement it started filling the brine tank as soon as it started the RR cycle and continued to fill it during the BF phase which meant essentially 16 minutes of BF, and the rapid rinse actually routing to the brine tank, not to the resin bed.

Any ideas? I have contacted the seller, but I see a ton of experience with this valve on this forum (the reason I bought it actually) and I'm hoping someone has an idea. My technical level is about as high as it gets, so tearing into this (and getting it back together correctly) is no problem.

The picture I attached is the tank after the RR cycle before the BF even starts, definitely an issue!

Thanks for any and all help.

Kevin

 

[Bannerman]

See the thread on "... Float valve stuck in up position"

Not exactly the same but many of the same checks.

https://terrylove.com/forums/index....tener-float-valve-stuck-in-up-position.76896/

 

[Sponsor]

 

[imadunatic]

Should water be flowing into the brine tank during rapid rinse?

It's drawing during BD just fine, but it's filling during RR also.

EDIT: Drain is functioning well, full flow with no blockages or issues.

 

[Bannerman]

Rapid Rinse only flows down through the resin bed to 'repack' the resin bed after brine draw and slow rinse. The only time water should flow into the brine tank is during Brine Fill.

I suggested the other thread mostly to have you understand the troubleshooting proceedures and as a link to the videos. Since you are experiencing water flow to the brine port during a cycle with no usual connection to the brine port, your issue is more likely with one of the piston seals but it wouldn't hurt to clean the injector assembly and check the drain regardless.

 

[Reach4]

In your programming, what is the VT setting. Usually that would be dF1b.

I think the Brine Valve would prevent that flow. Check that it appears to be operating correctly.

 

[imadunatic]

Ok, pulled the injector assembly, all looks brand new (in service ~2 weeks). However, it appears I have a timing issue. I took a couple pics of the state of the gears/actuator assembly and it's definitely not in the right spot at the right time. During brine fill the brine fill valve isn't even open and no water is going to the brine tank, only during rapid rinse and it's flowing to the brine tank under fairly high pressure for 10 minutes.

How does the controller know the position of the valves/gears? Is there a sensor or is it all just time based? There isn't really a way to get the timing of individual gears off (there are notches that must time out between the gears) but I'm assuming they must all be in a certain position during assembly otherwise the controller could think it was in RR mode while the gears were actually in BF mode.

 

[imadunatic]

In your programming, what is the VT setting. Usually that would be dF1b.

I think the Brine Valve would prevent that flow. Check that it appears to be operating correctly.

We have a winner! I was following these programming instructions: https://www.aquatell.ca/blogs/aquat...eck-5600sxt-softener-valve-for-max-efficiency

Everything seems to be well now... apparently the dual backflush has a different Brine Cam?

 

[Bannerman]

I hadn't considered being programmed for double back wash as the 5600 usual standard is 1BW. Double back wash requires an alternate microswitch cam.

https://terrylove.com/forums/index....l-settings-recommendations.76768/#post-562534 .See post #10.

 

[imadunatic]

Thank you both!

I learned a ton about how this controller works troubleshooting this. Unbelievably easy to work on also (I did not feel this way about my kinetico that required semi annual cleaning to not dump brine in the service water).

 

[Baubas]

We have a winner! I was following these programming instructions: https://www.aquatell.ca/blogs/aquat...eck-5600sxt-softener-valve-for-max-efficiency

Everything seems to be well now... apparently the dual backflush has a different Brine Cam?

I am experiencing the same issue. What exactly fixed it for you? Did you change the VT setting from dF2b back to dF1b or the other way around? I went through my settings and my VT is dF2b is that right?

 

[Bannerman]

The standard setting for the Fleck 5600 SXT is df1b (down flow, 1 backwash). 2 backwashes can increase performance for extremely low salt settings less than 6 lbs/ ft3, but will require an alternate microswitch cam.

https://terrylove.com/forums/index....l-settings-recommendations.76768/#post-562534 See post #10