Crazy CH

[yostmatt]

Hello. I just opened my pool and did a first round of tests and my CH is out of this world.

Here are my October 6, 2014 closing numbers

FC - 16
CC - .5
TA - 210
CH - 400
CYA - 50

Here are my results today

FC - 5
CC - 0
TA - 170
CH 1375
CYA - 40

I am not sure how my CH tripled. I drained down to about 8-10 inches below the return. Rain and snow filled it to the return, then i topped it off with my well water. When I test my well water I get 2750! Now I did leave my TF-100 in the shed all winter, so I am wondering if I have skewed numbers because of that. The other numbers seem to be in line, just the CH. Could my R0010 and R0011 be compromised. Here is a picture of them, they have a slimy crusty gunk on them.

Last summer when I did my initial fill, it was about 12 inches from the well, and then the rest was from the water delivery service, who gets water from a nearby spring. Just kind of lost for what to do about it. My water on the other hand is crystal clear.





Thanks... Matt

 

[Richard320]

Look at the bottle of R-0011. That's the purplish stuff. If the plastic is at all discolored, the reagent is bad.

 

[yostmatt]

Sorry, its 12 and 10. Not 11. The 11 looks fine.

- - - Updated - - -

Just looked at the 11. it looks dark blue, seems to look normal to me. I bought this kit around July last year.

 

[Patrick_B]

Yes it could be bad. I would not count on those numbers. You should not have such drastic differences. I would suggest ordering a full TF100 refill kit since you left it out all winter.

There is more here with the different sources, but get the possible reagent issue eliminated.

 

[yostmatt]

Ok. I'll get that order in this weekend. Is my water in any danger with the CH being so high?

 

[Patrick_B]

Not as much in a vinyl pool, but that high if correct, can even be of concern in your pool. It's not a "danger" as in unsafe, but potentially problematic. I assume it does not have a heater. Your sig line doesn't mention one so I presume you do not?

I'm concerned about the huge discrepancies as much as anything. Well's can absolutely change, I'd just like to be sure on all the tests and sources.

 

[yostmatt]

No heater. I did start to plumb for solar that I will install in the next few weeks. I had the solar cover off today, and it seems a bit cloudy. Does temperature have anything to do with those results?

I am going to order a refill kit, and keep my fingers crossed for some lower numbers.

 

[Patrick_B]

Not on CH really, and not anything near those variances. It will change how fast the end point comes around with a cold sample. Slower when colder, but I would get a full refill set. The cost is negligible when you consider the value the test results provide. It's not worth the risk at all.

 

[yostmatt]

I ordered some refills and got my tracking number this morning. When I get my new reagents this week, I will let the sample warm up a little before I test it. If it takes longer to turn to blue, maybe I have some extra drops in there. I do have the speedstir to help speed the mixing up. dropping 50+ drops makes that thing priceless.

 

[Patrick_B]

Yes, proper mixing a titration is critical. Whether it's by hand or stirrer/stir bar. By hand work fine but is very tedious for sure. Looking forward to your results.

 

[yostmatt]

I got my reagents today, and tested. My CH is at a comfy 300. Thanks everyone for the replies. This really is the best form to be apart of. I posted in a HVAC forum, and those guys were so arrogant, I ended up deleting my account. It was like I was taking money out of their pocket, for some DIY. I mean come on, an ignitor is an easy diy fix.

My kit will now stay inside all the time.