Recent content by mgolanlan

I keep looking for ORP measurements (before TFP I looked for FC electronic testing, and couldn't find any) and it seems the "serious aquarium" guys have cheaper probes and computers compared to the pool guys. What do you think of those? http://www.aquacave.com/SearchResult.as ... goryID=455 A...

I clueless as to "flow cell and a sealing gland". I understand I need some "housing" to place the sensor, and to seal it at high pressure. Do you mean some DIY PVC pipe that is added in the system like the SWG itself? Can you link to a picture please?

Richard, thanks for the skin info. I guess that makes the whole thing worthwhile for me. I've found an interesting ORP Sensor that comes with USB connection, software, and temp compensation. http://www.fondriest.com/products/nexsens_wq-orp.htm Seems like a great product compared to...

chem geek, I was referring to the actual graph in this thread, not the table you reference: pool-water-chemistry-t628.html Jason, thank you for the issues you've raised. Yes, I wasn't clear enough but I do understand that actual FC use is higher this way, as I let more of it burn in the sun. I...

Thank you for the hisotry lesson, it is a critical one to understanding the issue. I think I also understand all the variables for and against this zero CYA option. I should also note that the "Linux pool guy" is actually running a new SWG from 1600-2400 and just doesn't worry about residual FC...

Thank you all for the comments. I should have mentioned that the pool is on a roof at 6th floor some 25m above ground. wood deck all around and no vegetation (zero falling leafs)... I'm aware of the Ph stability issue (seems like a non-issue, it has been 7.6 stable for over a week). In...

I'm new but my pool is running great: 1.6x5x5 m (40,000 litter) Jandi Apure 1400 chlorinator (560gram Cl/24 hrs, or about 0.7 FC in one hour) Salt 3500 TA 90 Ph 7.6 CYA zero FC 0.7 at midday (100% Chlorination running) water is sparkling Having read thru the pool school and details info on...