Maintainance app, or pen and paper?

[mikellini]

Originally Posted by mike31154

I thought the main purpose of the carbon block was to protect the RO membrane from chlorine. I have a swimming pool test kit for chlorine that I used before changing the carbon last time & it still showed negative. I didn't wait until exactly 20,000 gallons on the last one, but close. I still use RO water from the system at 1 TDS for drinking etc. with no health issues that I'm aware of. I realize the filter is not that costly, but still like to get the most out of the thing before relinquishing it to the landfill. Besides, the water coming through my tap is supposedly fit for human consumption. A bunch of videos from a vendor are unlikely to make me change my errant ways! Folks are free to change them as often as they see fit, I'm merely documenting my experience. YMMV. And that's where my trusty spreadsheet comes in handy. I don't have a smart phone or iphone, so it's what I do.

What water were you testing with the script? That is a good way to test if your carbon blocks, as long as you're testing the waste water and not water that has gone through the membrane. You should still check out those videos, great info

[mike31154]

Originally Posted by mikellini

What water were you testing with the script? That is a good way to test if your carbon blocks, as long as you're testing the waste water and not water that has gone through the membrane. You should still check out those videos, great info

I disconnected the line at the output of the carbon block (before the RO membrane) & tested there for chlorine. I'll check out the vids too, but this discussion needs another thread perhaps, we're getting off topic of app vs pen & paper!

In the photo below the left strip is a sample after the carbon stage, the right strip is tap water.

[mikellini]

Looks good to me. We actually have decent water here, we pay enough for it... Anyway, back on topic, sorry haha

[Myka]

I have a good old paper notebook for each tank. I have used some apps and programs, but prefer good old paper. I have notebooks from years ago. I worry that digital data might get erased, damaged, or obsolete to the point that I can't access it anymore. I highlight things like carbon changes in different colors so it's easy to locate the last change. I also make visual notes if things are looking particularly good or poor, and I've learned a lot from looking at history leading up to good times and poor times. I refer to the old notebooks more often than I ever thought I would when I made them.