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I bought 4, but having a hot tub, most of it will degrade by the time it's used up. About 1 ppm per day demand if nobody gets in... My rugrat has a pool she hasn't opened yet, it will probably cost her a small fortune when she does

There's probably a few work-arounds to get more accuracy. For me, I do the testing and let the pool store also, if they somewhat agree I go with that. It's the one test that using their equipment is likely the more accurate way to test (if they use an electronic and calibrated comparitor...

overheated connections can have high resistance, sometimes you check with a dmm and just the probe tips pushing makes contact and you get a good reading where it was bad and sometimes movement from prodding causes a temporary fix. Then too, a connection can arc and the fusion is a fix (for as...

Didn't see an "X" for stirrer, but since it's inside I wonder if displacement is identical ... As a side note about rechargeable batteries, their impedance is lower (they can put out more current), and motors draw more current as the voltage is lower --- so using 1.2V rechargeable batteries X4...

Did you look for leakage to ground on higher ohms setting (either terminal to tube)?

A search might turn up other threads here. I'm not saying I know anything about these, but a few pics in the equipment area might prompt some suggestions, especially if there's a diagram in/on the controller lid. Sorr that's not much help :oops:

Or wire insulation wore through if it was touching somewhere there is vibration? Sounds like a possible starting point for troubleshooting. At least a process of elimination usually gets you closer to a resolution...

https://www.troublefreepool.com/wiki/index.php?title=Chlorine_Date_Code_Decoder

Pinocchio does not believe in fairy tale creatures like humans

That's pressure switch? Looks more like a suppository... :ROFLMAO:

If the circuit is shared, when the hearer comes on it draws a lot and if the voltage drops on the board due to shared loads, bad connections, extension cord, etc. it can cause a retry on starting up. Make sure the prongs don't fit loose in the outlet, and if possible check voltage at the board...

Closes on no-flow ... If describing a mechanical position sounds ok, electrical sounds backwards? With power and gfi breakers off an ohms check at the heater terminals might be telling. That said, the leak suggests a new heater assembly is needed. Can you post a pic of the leak (annotate...

Perhaps the cushions were defective? With 40 years in business you might find reviews on them? Just a thought.

Wow, just reread all 59 posts spanning over a year. Here's a recap. You don't use it much, your system is silver ion, UV, MPS, and (likely) ozone. You probably have a circulation pump although the short 30 minute filter cycles twice daily you mentioned suggest incongruity with that (I'm no...

There is a neutralizer reagent for mps, but using mps is controversial so I'd research it if you plan on keeping your supply of it. Some mps info. The "temporary" CYA charts. How often do yo dump the water? One expert's recommendation... The Frog system gets talked about here from time to...

Data analysis can be very hard stuff. Just can't help but wonder where the traffic came from. If I advise someone to maintain a minimum and linked them to the chart (before it was removed), did they go there, save a link, and come back from "the internet" when they needed to view it again, did...

Beginning of April was six months, but we used it almost daily when we first got it, and this fill I'd guess the average isnt even twice a week. It seems about as needy now as it was at the 2 1/2 month point on the first fill. I still think Matt made an excellent argument however...

As I said, it's predominately risk assessment. I'm risking 500 gallons and agree 100% it's an entirely different situation for a pool. To continue would appear argumentative, so at this point I'll just say if this was a matter of who's right and who's wrong, you are right and I am wrong 😉

Rural King Huntsville Alabama had 4 gallon boxes of 10% cheaper than Wallyworld but I can't find the receipt. For my hot tub it's a one year supply, so I reckon no SWG in my immediate future.

Agreed on daily needs, but I sent samples for occasional double-checks, or once running out of reagent. Mostly watching implied seeing a log sheet for at least daily calibrations and as you said clearly not tainting a sample. However, I also suppose the tests I cannot do at home might be...

I suspect there are other concerns as well as just their age. Some of my 1990's kit is still good. However, I did notice opening them (exposing them to air) quickly degraded one or two of the bottles. The CYA seems to not have any expiration at all, phenyl red stained the bottle a bit if...

All the manufacturers seem to be going to plastic gears on the camshaft. They crack then rotate (throws off valve timing). All the older mowers I've pulled out of trash piles and fixed ran for years, but not the new ones...

They've increased the number of categories that companies get rated in, so they can have thousands of complaints about integrity or failure to provide services and still be A+ for being licensed, having a phone, paying their subcontractors, name it ... dozens of excuses NOT to rate a...

Yup, meant "work out better" not "work better", but if using 10% and calculator calls for 15%, just add half-again as much. For example, if it called for 4 ounces of 15%, you add 6 ounces of 10%. You can double check this by throwing some easy numbers at the math; 4 * .15 = .6 (ounces) 6 * .10...

Long thread now, and don't recall - you added borites a week ago and plan to dump? How long on this fill and did you purge during? TA can take some time to settle, don't expect to get a good reading right away. Also, did you say ph was rising? How much? Anything 7's is ok, and trying to change...

Being gone, aeration should be at a minimum (just don't leave the air valves open). BTW, ph might "decide" to hover around 7.8 or 7.9. That's not going to hurt anything

There was a discussion some months ago about ORP probe measurement accuracy that, well, was way over my head but the conclusions were within grasp. Since I don't use electronic monitoring I have no capacity for recall on it, but in case you are not using it, I will point out the search block on...

+1 (What Matt said!) There's also a sticky pinned to the top of this group (here).

SWAG; tee broke (no supposition on failure mode), water leaked out, circulation pump overheated and seal was damaged, water refilled and it entered the damaged pump. [\SWAG]

Also notable from the graphs - bound can be considered a "reserve" as well as buffer. It's a great representation of why to use CYA, and why the chlorine in the water isn't perceived as harsh by most people.