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Duh... I should have thought of that today! :ROFLMAO: It would have been good for me to do an average of three tests. And yes... I was staring at it. This is where I think the standard will help me get an idea of how this stuff is supposed to sight in. Good idea. I actually work from home...

Thanks, guys! I'm going to order that full standard sampler pack newdude posted, since my eyes (and digital meter) could probably use a reliable reference on a few of these tests. A little training never hurts, on any test.

My goodness, I really dislike the CYA test method in the K-2006 kit. I have basically zero confidence that I'm calling the dot "gone" where I should. I mean, if I can just faintly see it through the haze, and another person claims they can't, should I keep adding or not? I seem to remember...

I am, and always have. But the “recommended level” printed on my water test reports from my pool store work out to 3.5% to 5.5% of CYA. It’s the same level at which they keep their half dozen demo pools, and they report no trouble… thanks to a bit of Silver and calcium carbonate. :D I know...

Interesting sense of hospitality, among a few select supporters and experts on this site. Mostly friendly and helpful people, but a few who definitely sure throw a lot of attitude toward anyone questioning the dogma, even a little bit. I've already said many times that I will be looking into...

Well, let's not pretend I haven't visited and swam in many dozens of different swimming pools in my lifetime. I'm not blind to water clarity. Yep. I totally understand that. I'm not arguing Frog is the perfect system, just refuting the false notion that it can't get me through this season...

Cool. Definitely doing some research on this next winter, and probably changing out for that. Thankfully I already re-plumbed my sanitizer on its own pair of unions, for easy change-out.

I’m not sure what that even means. My goal is to have the maximum number of useable swim days, while minimizing time spent on maintenance. Is doubling my chlorine requirement, in the name of eliminating a once per season algae preventer and a Mineral PAC containing silver really “best”? Says...

I should start another thread, or glom onto probably one of many already here, but I have some questions about the corrosive nature of salt. I'm guessing 90% of what I've read there is marketing BS, as Chlorine itself is quite corrosive, but still some concerns I want to satisfy. Will seek out...

Yep, been doing that since the CYA hit 55 ppm. The tablet canister will only be used in the sanitizer during travel weeks, at least as long as CYA remains above target. I honestly like the sanitizer, just let it do its thing and bump it up or down a bit here and there, as needed to keep target...

As already stated, the above advice is from the pool store, and came to them from Frog. My last water test showed CYA = 55 ppm, and based on this they recommended keeping FC = 1.9 - 3.0, based on this "elevated" CYA level. Not sure why you would think I'm going to start having issues, when I...

My family settled this area (New Hope / Bucks County PA) starting in the late 1600's, but really heavily in the early 1700's. Lots of old houses in the family, when I was a kid growing up, all last owned by my grandparent's generation and subsequently sold off. One had been in the family since...

I've seen chlorine eat so many bicycles, lawnmowers, plumbing, and everything else that might be stored in a garage or shed, that I just store my chemicals in a separate weather-proof chest. We just had a severe storm blow thru, sideways rain drops the size of marbles, and everything inside is...

Thanks! Done.

For the first time since we've gotten it, rain has worked faster and harder than evaporation. Water is almost to top of skimmer opening. I had thought I'd be using opportunities like this to backflush the filter, but honestly, the gauge really never climbs beyond initial reading for a given...

Just ran out and tried to grab a photo or two, but realized I really need a ladder to get above the slope that is our back yard. Here's what I was able to do, standing on my tip toes. :D Made the second one square format, thinking it might make a decent avatar.

Should've added, seller was Amazon.com (not marketplace), and brand was LaMotte. I'm not sure how this would compare to pool test kits from LaMotte, or other brands from Amazon.com, per @Saturn94 and @reggiehammond.

Oh... hardness test and SpeedStir just arrived around 2pm. Reagents are all late 2025 or 2026 expiration.

Thanks! House is 290 years old as of this year, but I think that flagstone patio was probably added during the 1775 or 1890's additions. The colored concrete patio, walls, gazebo and fireplace were added in the 1990's, and then the pool with a smaller separate patio in 2023. Just realized I...

Done! Let's see how it shows up after this post. Also snapped a quick pic for an avatar, although I really should get one with the cover off the pool, umbrellas up, and patio cleaned up a bit better. :D Totally agreed, but due to a bad choice to place an initial order with Taylor, this has...

It’s actually for debugging a water softener issue in our house. Like proavia said, measuring CH alone might be close enough in regions where Mg is low, but I just don’t know enough to comfortably wing it. Would rather just run the test that leaves me no doubt, anything that captures CaCO3...

Hardness for house water is measured as CaCO3, as it often contains as much or more total hardness from Magnesium as from Calcium. TF Test Kits does not have this. I just went ahead and ordered everything from Amazon. I'll have a LaMotte total hardness drop kit tomorrow afternoon, along with...

Because the TF-Pro lacks some of what I need (eg. total hardness for house water), and because it also contains other things I already have (eg. pH, Alkalinity). But I did call Taylor to find out where the heck my order was, and they said they won't be shipping it until next week! Hard to...

Thanks, @newdude! Yeah, I know pH is a long-term thing, but I think my pH is low more often than not, so... long-term. I know metal parts (heat pump heat exchanger) corrode faster in low pH, but I'm not sure how much faster. Maybe all heat pumps die from weathering, long before pool water pH...

Good. I tried re-testing Alk this morning, following the guidance to keep dropping until red shift stopped, but I'm honestly just guessing. I couldn't tell when it stopped shifting. I'd put my accuracy there at worse than a 30 ppm range. Maybe when I get the automatic stirrer (also on order...