TF-100 refills
- Thread starter tcat
- Start date
Have you watched the video on YouTube that shows the test?? With a few tries you can slowly get the hang of where it's at.
http://www.youtube.com/watch?v=NxaqoW-_ ... E2EE701C4D
Another option is to order a standard from TFTestkits. You use the solution rather than your pool water, and the result will show you what a reading of 50 is time after time.
http://tftestkits.net/R-7065-CYA-Standa ... n-p34.html
http://www.youtube.com/watch?v=NxaqoW-_ ... E2EE701C4D
Another option is to order a standard from TFTestkits. You use the solution rather than your pool water, and the result will show you what a reading of 50 is time after time.
http://tftestkits.net/R-7065-CYA-Standa ... n-p34.html
Leebo said:
yes - I've been doing that CYA test since last July .. I 'get it' ... but still ... I guess I'm to A/R about its accuracy ... so somewhere between 40 & 55 is good.
tcat said:
FYI, the R0004 and R0014 are NOT the same. One is meant for the small square tube (with the TF100) and one is meant for the larger round tube (with the K-2006). That said, I am pretty sure the ingredients are the same, but the concentration is different. So, it should work, but you may have to use a different number of drops.
Here is some info ... and additional links in the thread:
still-cannot-get-a-bead-on-my-ph-t52726.html?hilit=pH%200014%200004
EDIT SUMMARY:
You will likely have to use 2 drops of R0004 in the small square block or the colors may be too saturated
tcat said:
My frustration is the light condition. It makes a big difference in when the dot disappears. "Stand outdoors with your back to the sun and hold the view tube at about waist level. " Fine, but time of day and weather make a huge difference in the result. I live in NJ, not some sunny desert and the light is never the same twice when I need to test.
- May 30, 2012
- 1,606
- Pool Size
- 17000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool Edge-40
LOL, I had assumed wrongly that "phenol red" was phenol red; they should add % to the label! Identical MSDS sheet on both I found one bit of info: "R-0014 is used in a 9 ml comparator, R-0004 is used in a 44 ml comparator", by that reasoning 1 drop would be equivalent to 5 drops. I have some of 0014 left, so I'll test it twice tonight and see if 1 or 2 drops = same color.
That'll teach me not to buy from anyone but TFtestkits!
That'll teach me not to buy from anyone but TFtestkits!
jblizzle said:
Another reason to test indoors at the same spot where the lighting is consistent. The other reason is it's closer to the 'fridge if you need an emergency cool one!
Shhhh let me tell you a secret. The video was filmed on a day where if you could find the sun at all I'd give you a dollar. The camera was facing right towards where the sun would be, if it weren't hidden by the clouds. I'm not sure we followed a single suggestion to acheive "the best result" in the video. Still came out at 50 using the standard. The main idea is to make sure you don't have a harsh light shining right into the tube. Holding a maglight right on top of the tube will give you a false reading. As Dave suggested, try the tests indoors. I use a white posterboard at the kitchen table under a bright LED lightbulb. Makes for a consistent sun, and I can test in the AC.
I pour it back and forth several times and take an average. You'd be surprised but after pouring it back and forth you get a good feel for when it disappears.
Just a side note on shipping.....it has become obnoxiously expensive. They have increased in price by about 25% or so in the five years we have been shipping. (maybe more, that's a guesstimate) Today, we shipped a kit (plus a speedstir and salt test) to AZ for $23 something...
I really wanted to buy a test kit from your guys, but the cheapest shipping option in $19 to Arizona. That put the kit at about 90 dollars. Can't do it. Sorry, I know your hands are tied. Did you consider setting up a partner in the CA/NV/AZ area to do the bulk order/package and ship? There are so many pools between just those three states...
Try this link to Pool Supply World, http://www.poolsupplyworld.com/search.htm?searchBox=tf-100+test+kit&x=29&y=24. Hopefully the shipping is less for you.
If money is tight and you already have a PH test kit then you could order the TF-50, it's not as good a bargain but overall price is lower.
indeed, the shipping is $7.95. I'll remember to check that site. I already ordered a taylor 2006 kit for $51 out the door at amazon.