KH Carer Review and Experience

[Gungo]

Something doesn’t look right. My calibration factor is .68. What are you checking your alk against? If you are using a Checker for example, test with that, then run a test with the KH Carer and then go to:

Settings - maintain - calibration - KH - Go to calibration - (then enter the number dkh it should be at)

See if these steps help.

those steps will only work after a manual test? Because I tried that, but I'm still getting the "Please recheck KH" error, and won't let me calibrate.

 

[Daveph68]

I am wondering if anyone knows if there is a way to change the speed of the Kamoer Carer Wastewater pump, it does not completely drain the beaker during each rinse even though the tube is at the bottom of the beaker

 

[BAMatter]

I am wondering if anyone knows if there is a way to change the speed of the Kamoer Carer Wastewater pump, it does not completely drain the beaker during each rinse even though the tube is at the bottom of the beaker

Calibrate it through the app it should drain fully

 

[BAMatter]

those steps will only work after a manual test? Because I tried that, but I'm still getting the "Please recheck KH" error, and won't let me calibrate.

What are you getting as a result when you manually test? What reagent ratio are you using? Have you calibrated PH probe and other pumps?

 

[Gungo]

What are you getting as a result when you manually test? What reagent ratio are you using? Have you calibrated PH probe and other pumps?

Reagent Ratio: 20ml sulfuric 1M (2N) acid + 980 ml RODI = 1L Reagent.
The results I'm getting are around 1.7 KH to 1.3 KH, but the PH is stable at around 8. The PH probe is brand new from pinpoint marine, with new calibration solutions freshly calibrated. I only calibrated the Saltwater in pump, the reagent and waste pump says that comes calibrated from factory.

 

[BAMatter]

Reagent Ratio: 20ml sulfuric 1M (2N) acid + 980 ml RODI = 1L Reagent.
The results I'm getting are around 1.7 KH to 1.3 KH, but the PH is stable at around 8. The PH probe is brand new from pinpoint marine, with new calibration solutions freshly calibrated. I only calibrated the Saltwater in pump, the reagent and waste pump says that comes calibrated from factory.

I have not used that DIY reagent, so unfortunately I can’t help much there- maybe try to get a small bottle of the Coralvue concentrated reagent and do a 1:8 ratio? Seems like your reagent is too strong if your PH is normal but alk is incredibly low. What does a 3rd party alk test say?

 

[Gungo]

I have not used that DIY reagent, so unfortunately I can’t help much there- maybe try to get a small bottle of the Coralvue concentrated reagent and do a 1:8 ratio? Seems like your reagent is too strong if your PH is normal but alk is incredibly low. What does a 3rd party alk test say?

Alk is reading at 7.7 on salifert. If I don't get any leads I guess I'll go with the CV bottle just to make sure is not the reagent.

 

[Daveph68]

There is no calibration for the Wastewater pump in the app, only the Saltwater and KH pump.

 

[BAMatter]

Alk is reading at 7.7 on salifert. If I don't get any leads I guess I'll go with the CV bottle just to make sure is not the reagent.

Make sure it’s the concentrate and not the ready to use.

 

[Daveph68]

Where can you buy replacement Dosing heads and tubing for KH Carer

 

[BAMatter]

Where can you buy replacement Dosing heads and tubing for KH Carer

Can try to email [email protected] she can likely help you get situated. May have you go through Alibaba, that’s how I acquired an E1 module.

 

[SFNanoReef]

For those of you with Hydros controllers, is the KH Carer a better option than the Hydros iv?

 

[BAMatter]

For those of you with Hydros controllers, is the KH Carer a better option than the Hydros iv?

I had absolutely terrible luck with my X10/iV setup and have been using my KH Carer since I stopped using Hydros for alk testing. Spent more time calibrating, testing, recalibrating, changing pump heads, etc than I like to admit with X10/iV. My KH Carer takes care of testing and dosing based off of test results. Hydros makes a great controller but from my experience the alk testing was not good. I’ve also been using a Kamoer F4 dosing pump for additives and a X1 Pro T for continuous duty alk dosing, so I use Hydros for power and sense for the most part, and Kamoer for the chemistry side of things.

 

[SFNanoReef]

For those of you with Hydros controllers, is the KH Carer a better option than the Hydros iv?

I had absolutely terrible luck with my X10/iV setup and have been using my KH Carer since I stopped using Hydros for alk testing. Spent more time calibrating, testing, recalibrating, changing pump heads, etc than I like to admit with X10/iV. My KH Carer takes care of testing and dosing based off of test results. Hydros makes a great controller but from my experience the alk testing was not good. I’ve also been using a Kamoer F4 dosing pump for additives and a X1 Pro T for continuous duty alk dosing, so I use Hydros for power and sense for the most part, and Kamoer for the chemistry side of things.

Thank you for the feedback! I have read a lot of negative reviews about the hydros iv and alk reading stability. I also have the Kamoer F4. I am looking to automate my alk dosing, my first choice was the AquaWiz but someone is selling a KH Carer at a good price so started my research on it.

 

[BAMatter]

Thank you for the feedback! I have read a lot of negative reviews about the hydros iv and alk reading stability. I also have the Kamoer F4. I am looking to automate my alk dosing, my first choice was the AquaWiz but someone is selling a KH Carer at a good price so started my research on it.

See if it has the tubing upgrade done on it or not, it’s easy to do if not. I test 4 times daily with a 9.75dkh point and usually within .25dkh either way. Happy with the results. If you have an F4 Pro V2, look into the E1 Module which connects the Carer to the F4 for even more control. I have one but yet to set it up, but hoping I can have the F4 dose alk based on results, and also have it dose calcium at a 1:1 ratio. Good luck with whatever way you decide to go.

 

[SFNanoReef]

Thank you for the feedback! I have read a lot of negative reviews about the hydros iv and alk reading stability. I also have the Kamoer F4. I am looking to automate my alk dosing, my first choice was the AquaWiz but someone is selling a KH Carer at a good price so started my research on it.

See if it has the tubing upgrade done on it or not, it’s easy to do if not. I test 4 times daily with a 9.75dkh point and usually within .25dkh either way. Happy with the results. If you have an F4 Pro V2, look into the E1 Module which connects the Carer to the F4 for even more control. I have one but yet to set it up, but hoping I can have the F4 dose alk based on results, and also have it dose calcium at a 1:1 ratio. Good luck with whatever way you decide to go.

I would say within .25 dKH is reasonable.

 

[Gungo]

Update: Had to upgrade all the tubing on my unit. To give you an idea, the SALTWATER IN pump flow rate had around 105ml per minute with old tubing, and now it's sitting around at 29ml per minute with new tubing. The reagent pump I didn't calibrate, but I noticed a WAY SLOWER flow rate through the tubing. The dimensions of the tubings were changed, and that, along with an app update by the Kamoer team, fixed my unit. I contacted THERA at the email previously shared by the people here. The email exchange rate is about 1-2 emails per day due to the time zone difference, but with patience, they will help you figure it out.

Also note that the correct formula for the sulfuric acid (1M) from Amazon is:

995ml RODI + 5ml 1M sulfuric acid will make 1L of KH Carer Reagent.

This seems to work very well. I will update in the following days if I notice anything.

 

[BAMatter]

Figured I’d also add to my KHC experience with the addition of the E1 Module to connect my F4 Pro dosing pump. Definitely a worthy investment- you can program any of the heads to dose whatever proportion of alk was dosed by the KHC. I have my ESV Calcium getting dosed 100% of alk amount 7 mins after the KHC doses alk. Also running a test on Pump 4 as a 10% of alk portion since I’ve been considering putting ESV Mag on a spare doser. It automatically turns off any other programmed schedules if you select “Follow KH Carer to Dose”. Really solid interface..

 

[Gungo]

Update: KH Carer has been surprisingly consistent with the results. KH stays around 8.3-8.5. Did a big water change with 11 dKH water and the device noticed it and sent a notification when out of range, also it retest the water to confirm the parameter which I think is great addition. I think the best thing is the app, great UI when you get used to it.

Overall I think its a great device and would recommend to anyone. It has its learning curve as with any other device, but when you understand it its awesome!!

 

[iannarelli]

Hey everyone, I just picked up a used KH Carer and Avast K1 off Facebook marketplace for an absolutely absurd price... like, too good to pass up. The seller admitted the pH probe needed to be replaced, and I want to do some routine maintenance before I set it up. Is [email protected] still the go to person? I'm wondering if I need to do some of the updates mentioned in previous posts beforehand as well. Finally, any tips for using it?