Pacific Sun Kore 5th dosing Fan Club
- Thread starter Rudimenta
- Start date
I came home today to disaster. ATO solenoid valve stuck open, dumping 20+ gallons of DI into my sump. Not an controller fault, just changed out the DI resin and it got into the valve.
I am going to have to do a pair of valves in a series, one hooked up to the Kore 5th and one to Cerebra. Both devices have to agree before DI is added to the tank. I am wondering about the strengh of the coil on the OE Kore 5th solenoid valve, can you tell me the wattage on it?
I am going to have to do a pair of valves in a series, one hooked up to the Kore 5th and one to Cerebra. Both devices have to agree before DI is added to the tank. I am wondering about the strengh of the coil on the OE Kore 5th solenoid valve, can you tell me the wattage on it?
Przemek_PacSun
New member
Sorry to hear that 
Yeah, that small balls can stuck solenoid valve because they are too hard and it will not close completely.
As I remember valve take 4W.
Yeah, that small balls can stuck solenoid valve because they are too hard and it will not close completely.As I remember valve take 4W.
Thanks. Oh well, its a lesson learned. Salinity only dropped at 1.021 so hopefully there wont be too many loses.
In hindsight, I should have used a strainer between the DI and the solenoid. Mechanical float would have prevented that as well.
I am presuming that the higher the wattage of the coil the stronger the spring, the harder it will try to shut closed.
In hindsight, I should have used a strainer between the DI and the solenoid. Mechanical float would have prevented that as well.
I am presuming that the higher the wattage of the coil the stronger the spring, the harder it will try to shut closed.
Why can't you implement fewer changes?
I've been holding onto this thing in the hopes that the next firmware update would allow me to use all the functions. @andrek787 I'm sorry about that disaster...I've had multiple potential disasters with this unit, luckily I've been here to mostly stop them. Looks like I'll be selling mine.
Anyone planning to use their new "fix" DO NOT USE option B without a backup mechanical float. Taking the float/optical sensor out of the equation is a bad idea. Especially when the waste pump fails (and it does), a day of clean SW being pumped in and you're flooded. Or with the numbers getting screwed up by the BT Connection and suddenly it thinks you want to replace infinite ml of water.
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I've been holding onto this thing in the hopes that the next firmware update would allow me to use all the functions. @andrek787 I'm sorry about that disaster...I've had multiple potential disasters with this unit, luckily I've been here to mostly stop them. Looks like I'll be selling mine.
Anyone planning to use their new "fix" DO NOT USE option B without a backup mechanical float. Taking the float/optical sensor out of the equation is a bad idea. Especially when the waste pump fails (and it does), a day of clean SW being pumped in and you're flooded. Or with the numbers getting screwed up by the BT Connection and suddenly it thinks you want to replace infinite ml of water.
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vhuang168
New member
Are you using the ro/di directly from the unit and not from a reservoir?
If your ro/do is constantly cycling on and off doing ATO duty, your membranes andwill not last as long which will eat up your DI as well. Membranes should also be flushed before each use and after as well as after an period during a long run. TDS can creep up in the membrane.
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Yes, I am supplying DI water directly from a remote RO\DI unit. I know those as legitimate concerns but I have taken steps to address them.
1. There is a 1 hour delay between when float is triggered and ATO actually runs to reduce the cycling
2. There is a 10 gallon pressure tank that is periodically refilled by the RO unit based on system pressure.
3. The RO\DI is electronically controlled and is automatically flushed prior to start up.
vhuang168
New member
If only I could connect to doser...
I really want to try to use it..
Has tech support been in contact yet?
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Yes... Same instructions that I have attempted. I just sent off an email mentioning that I am OK with a remote session.. If that will help.
Its refusing to connect. I have gone through this last time with com ports deleting/renewing. Last time it was a windows bug, which has been resolved a while ago. I would rather let them see whats going on now. It may be a firmware update, but just did that and all was working well I set up dosing, ventured on with using the floats (first time) that seemed to work and then I tried to use the optical sensor.(never used) Once I plugged that in everything went down hill. I have everything removed and been sitting at the table with laptop and doser with new bluetooth dongle and am getting connection errors.
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I was thinking something was different because the first time they mentioned using the reset button. That was news to me, but after sending them photos they mentioned that I have the older model and need to use the switch. I have done this before and have been successful with firmware updates also. Bluetooth would not connect so I sent the device to Poland. After receiving the doser back from Poland, it was mentioned nothing was wrong with the doser they just had to reset it. So... Here I am needing to re-set.
Just a lot of cash to set aside.... Might have to dismantle to see if I could somehow use the parts before just setting aside.
I am working with them in hope that it can be worked out.
Przemek_PacSun
New member
I would like to say it again:
All connection issues are sourced by weak signal/bluetooth modules which not support needed communication protocols(RFCOMM/SPP).
We sold thousands of that dosers - and based on our experience almost all issues reported to our service were sourced by computer side(bluetooth).
That was confirmed by several Customers in that thread which HAD issues and problems with communication but after using Class 1 modules they got.
It's not rocket science. The same situation you will notice when you will use bluetooth headphones and you will be too far away from your transmitter - you will hear some breaks in sound transmissions (what mean that digital data wasn't received from transmitter).
Please forgive me - but it's not blaming anybody. It simply a fact and of course anybody can have his own opinion - but that what I said base on our technical knowledge and 6 years experience of using Bluetooth modules(we are using THE SAME modules in our lamps since 2009 year). We used more than 10.000 of them and that manufacturer is one of the best on this field (Rayson).
@Truepercs
If you have gen.1 dozer you have switch instead of reset button.
Thats only one difference in dosers gen.1 and gen.2. They have the same ports, possibilities etc.
If our service checked your dozer and confirmed that everything is working properly - it mean that test report is in our base and can be very easy checked by me tomorrow.
I will check your mails history with our service.
PS. I saw that you have BT dongle - can you give me information which module it is exactly?
All connection issues are sourced by weak signal/bluetooth modules which not support needed communication protocols(RFCOMM/SPP).
We sold thousands of that dosers - and based on our experience almost all issues reported to our service were sourced by computer side(bluetooth).
That was confirmed by several Customers in that thread which HAD issues and problems with communication but after using Class 1 modules they got.
It's not rocket science. The same situation you will notice when you will use bluetooth headphones and you will be too far away from your transmitter - you will hear some breaks in sound transmissions (what mean that digital data wasn't received from transmitter).
Please forgive me - but it's not blaming anybody. It simply a fact and of course anybody can have his own opinion - but that what I said base on our technical knowledge and 6 years experience of using Bluetooth modules(we are using THE SAME modules in our lamps since 2009 year). We used more than 10.000 of them and that manufacturer is one of the best on this field (Rayson).
@Truepercs
If you have gen.1 dozer you have switch instead of reset button.
Thats only one difference in dosers gen.1 and gen.2. They have the same ports, possibilities etc.
If our service checked your dozer and confirmed that everything is working properly - it mean that test report is in our base and can be very easy checked by me tomorrow.
I will check your mails history with our service.
PS. I saw that you have BT dongle - can you give me information which module it is exactly?
If only I could connect to doser...
I really want to try to use it..
I really dont get why people are having these issues. My Kore 5th is magnetically mounted to a 1/4" steel plate inside of my stand and even with the antenna removed I am not having any issues, with a desktop PC few feet away using a 15 buck dongle.
It might even be shitty BT drivers on the PC side.
The only thing I can think of is that sense electronics are mounted inside a sealed steel housing and external antenna is not quiet connected to the BT module.
Good luck. If you can stay up late or be up really early morning, you should be able to reach the EU tech support tech support and get a realtime assitance.
I have been wondering when Przemek has time to sleep, lol.
Przemek_PacSun
New member
I never sleep 
We have one rule here(in PL): "Go big or go home" ;-)
We have one rule here(in PL): "Go big or go home" ;-)
Just to confirm...there will be no ability to do 12 water changes per day instead of 24?
I held onto this doser for several months after being told that this would be implemented in the next firmware update.
I'm not going to rely on the same time method based on the overall reliability of the unit as a whole and the simple fact that the method will not work with pumps at different distances/head heights etc.
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I held onto this doser for several months after being told that this would be implemented in the next firmware update.
I'm not going to rely on the same time method based on the overall reliability of the unit as a whole and the simple fact that the method will not work with pumps at different distances/head heights etc.
Sent from my iPhone using Tapatalk
@Truepercs
If you have gen.1 dozer you have switch instead of reset button.
Thats only one difference in dosers gen.1 and gen.2. They have the same ports, possibilities etc.
If our service checked your dozer and confirmed that everything is working properly - it mean that test report is in our base and can be very easy checked by me tomorrow.
I will check your mails history with our service.
PS. I saw that you have BT dongle - can you give me information which module it is exactly?[/QUOTE]
Sent you BT Dongle info
If you have gen.1 dozer you have switch instead of reset button.
Thats only one difference in dosers gen.1 and gen.2. They have the same ports, possibilities etc.
If our service checked your dozer and confirmed that everything is working properly - it mean that test report is in our base and can be very easy checked by me tomorrow.
I will check your mails history with our service.
PS. I saw that you have BT dongle - can you give me information which module it is exactly?[/QUOTE]
Sent you BT Dongle info
Any particular reason you have to have 12 changes per 24 hours?
The AWC software function is there to simplify programming. You can technicaly "dose" water out of the tank and "dose" new water into the tank on any schedule you desire. Simply disable the ATO function when the change is scheduled to take place. As long as the pumps 4 and 5 are calibrated, just set the dose amount to be the same.
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I had the doser working before... That's why I don't want to give up on it.
I had it set up even with the crappy laptop bluetooth. I even updated firmware with the crappy laptop bluetooth. It took me a while to get it set up the first time but I found out there was a windows bug that was not deleting unused com ports. It made the initial set up experience painful, but I realize it was not the fault of the doser.
Something happened...
I just want to resolve, I did not spend the money to shelf it...
If there are thousands of folks that are successfully using this doser I want to be one of them.
Yeah when you're using the DC pumps it doesn't work like that... the clean water pump isn't calibrated it relies on the level sensor to know when to stop.
My issue, is with 24 changes it doesn't change out a large enough volume to trip the float switch...so the fw ATO ends up replacing the missing water between changes and my salinity progressively gets lower and lower. I'm currently changing 8% a week and don't want to do more than that. Honestly I'd prefer 7%.
I've band-aid fixed this issue by adjusting my new SW salinity to about 1.014 and not using the ATO at all. My system isn't perfect due to fluctuations in evaporation etc and I would like to use the ATO and the AWC.
More than likely I'll end up scrapping the kore 5th and using the controller to automate water changes..just involves more money
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