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Assuming a tub kept covered (i.e. no UV degradation) during the time it takes for the dichlor to dissolve and dissipate, it can only increase until it's fully dissolved, right? So my view of it is that there's no downside to waiting an extra day or two in order for it to be well and truly...

Well, yeah, unless overshooting results in 90-100ppm CYA, which is what happened to me. Also, I'd strongly discourage the use of Imperial measurements in this stuff. Was that 1.5oz of which you (okay, the previous guy) spoke 1.5oz liquid or 1.5oz weight? Nothing hard about sticking with...

Vocabulary lesson time, my canuck friend: The plastic tube is a "vial". "Vile" is what your tub turns into if you just ignore all this business. My experience was exactly as yours: The dot didn't quite disappear with the vial full (and in fact continued to do that even after another addition...

This is the one I went for: 32oz bottle. That's in US dollars, though, so add shipping (within the US) and it quickly turns into $50 CAD. But I'm getting twice as much, and my situation is a little unusual in that I have a mailbox in MT, which makes getting a lot of stuff from the US much...

Yes, I did read the instructions.

Ah, and it's taking its time dissolving.

What I meant was "low but measurable". On the question, thanks - stick with the first reading. Can anyone explain why this happens?

By guess and by golly I managed to pin the CYA to a reasonable level - 45ppm - though I don't know how it's going to hold up, as some new leaks (grrr...) have appeared that are going to require a little periodic topping-up, as I don't want to deal with them before spring. But that's not the...

Yes, the CT/Aquarius stuff I linked to is dichlor. Mos def what you want. I expect that bucket to last forever.

I don't know anything about this industry, but 8 years doesn't seem very old - I'd expect you should still be able to find that motor. Another possibility is having your motor rewound.

Mentioned previously, but the sump pump won't quite empty it - you need a wet shopvac for that. Also, Princess Auto carries (lay-flat) "discharge hose" in bulk in a range of diameters, and very nice (and cheap!) couplers to reduce wrestling and storage hassles. We're running on supplies from...

Hey, @mwhitney , (just south of) Calgary here. Fwiw, I've had a rough time getting CYA dialed in - it's really easy to overshoot, esp. if I don't wait a couple of days between adding and testing, and having to replace any water when it's -30 sux pretty hard. This leads to a lot of CYA...

I bought the K-2006C for just that reason, and it contains three 2oz bottles of the CYA reagent. But even with the smaller mixing bottle, at 7ml/test it gets burned down at a much higher rate than all the (per-drop) others.

Thanks - I'm sure I read that but it hasn't soaked in yet. Incidentally, my Taylor kit has a 14ml mixing bottle, not a 30ml. Even so, eight tests eats an entire (kit) bottle of R-0013, and for me restocking is a logistical nuisance - if I'd known it was consumed at a rate so disproportionate...

I don't carry a tracking device, but was using the web version. I suspect I didn't wait long enough before that last addition. I'm using granular dichlor. I hadn't added any liquid bleach yet. Sure, I understand the dilution series, but am really trying to avoid that at the moment, as it's...

I'm still working on getting the numbers in place after a purge+refill. Knocked down the TA as predicted. Got the pH into a good place. Upped the CH. Life was good. But I couldn't get the CYA to register - I added small (30gm) doses every couple of days, but just couldn't get it to budge...

Did you fill us in on your decision regarding filling with hard or soft water?

Or the technician reports back that the factory screwed the pooch on this unit and initiates a return/exchange. Don't be too pessimistic until he's made his visit.

That's the real deal, alright. But how much of your space is it going to fill? If I've got this right, divide their 210 "board feet" by 12 (because it's 1" thick) to get how many cubic feet is in there, and the answer is 17.5 . Divide that by 4 to get how much you have for each corner: 4.4...

Thanks for the update - can't wait to see/hear what you get next week.

Actually, I just ran Ahhsome (for the first time) two days ago on a new-to-us ten-year-old tub with an unknown maintenance history that's been in service here since fall. Figured I should do it because I just couldn't seem to keep my chlorine levels up. We got the brown sludge along with the...

Absolutely - I have no doubt at all. Capital cost is rarely the killer, operating cost is. And I assume that if someone has to shut it down for a period, doing so properly will preserve the hard investment so that it's not a writeoff when better days come around and it can be (affordably)...

Oh, I don't know about that. I don't want to make A Thing of this, and obviously the capital and operating costs are functions of the size of the toy and its environment, but even (relatively) po'folk like us who economize, economize, economize every day of our lives can manage a relative...

"Dead airspace" only insulates when it can't move around, in this case by natural convection within the enclosure. That's the whole point of having foam, fiberglass, rockwool, etc., insulation - so that the air entrained in it stays still. THEN it insulates. However, if you have a big open...

Hmm. So I'm just looking at your historical temperature data, and it looks like for the first three weeks of the month your average nighttime low was about -5C. That's pretty far from "brutal" - we've had quite a mild winter so far (thanks, Chinook!), and we've still woken up to -28C a few...

Oh. Ouch.

I'd have to go dig up and crack my old thermodynamics texts to confirm, but I'd be skeptical wrt the claimed losses from the bottom of the enclosure. Still air is always going to stratify, and all losses (meaning slightly cooler air) will accumulate at the bottom, forming a boundary layer...

Hard to tell from your pics, but is it pushed into a corner i.e. up against wall and/or fence? Yeah, that'll be a problem. But on the side(s) where you do have access, can you not just cut the sprayed foam back so it's inside the support framing? Then you could add at least some panels like...

Okay, so it appears there are a couple of different approaches to insulating these things. My Dynasty has the ISO sheets fit into the frame (as I described in my previous post) and an insignificant amount of foam sprayed in, mostly at the bottom. My bud (also in Calgary and here in the forum)...