Recent content by Davekro

Oye, your comment made me test my CYA. It was 48 ppm. I last tested 3 1/2 weeks ago and I got .6 ppm CYA. I had totally forgotten what CYA was about, so Googled it again and found chemgeeks CYA to FC chart and learned I needed to revise my target FC from 2-4 to 6-8 FC, and minimum FC from 2 to 4...

Yes, the outside dimensions of 6'8"x 7'4" exactly the same between your 2020 A6 and my 2023 A6. BUT, the 2023 has a different, smaller radius for 2023. On your tub, the cover's 8" radius, matches the 8" radius of your shell. The 2023 shell corners are much smaller being a 4" radius. The result...

I am very happy with my Bullfrog hot tub. I am very disappointed in the complete lack of customer service from Bullfrog corporate to even-return-an-inquiry to me, ever. I am very curious if you have gotten responses from Bullfrog when you have either left a voicemail message or when you have...

On my 2023 A6L Bullfrog, the only part of the EOS Ozone system that mentions a replacement timeframe, is the actual charcoal filter (2 years). The EOS ozone generator has no marking on the unit itself, and is not mentioned in the manual. Since Bullfrog has not responded to any of several phone...

Thank you for the perspective of the flickering light. When I was testing using a flashlight, today, I did put a white background behind the comparator too. It does work well. But my manual swirling causes a distraction, probably a bit more than the blinking light for you.

Thanks to all for all the good info on the DPD powder.

Is storing just the 'extra' liquid reagents in the frig, in a ziplock bag in the back of a vegetable at a constant 38ºF a positive, negative, or no better than in a dark, room temp cabinet (≈64º - 78º max over day/night throughout the year).

I have no reason to assume the TF powder does not test exactly the same as the white Taylor powder, but I thought I would ask raise the question due to the different look and texture of the TF brand 870 DPD powder. And also to ask if the experts here use TF brand reagents with full confidence...

Thanks for the picture showing the underlit test vial. I just propped a small LED flashlight pointed to where I was manually spinning the Taylor comparator. The light does help. Next time I'll try it with the light on the side, or on my side pointing away. Good tip. Even if I don't decide right...

Thanks for the info all. It is good to know that the Taylor stirrer works with either the dual tube 2000 series comparator or a beaker on top of it and spins. Does it seem to spin just as well as when the supplied vial is used? What and where do you get extra vials? A link if it's easy, would be...

I think I read that even if you could balance the 44ml tube of the Taylor 2000 series comparator over the recessed spot on these spinners, the magnet is too far away to spin, or at least properly, correct? Still being new at this, I have an area I have my blue Taylor box, a few chemicals and spa...

So do others also feel that having the tube lit from below in fact makes it easier to see the nuanced color changes? Does it help on the TA test? I always wonder if that last drop actually made it redder or not! It seems on the FC test, it is pretty easy to tell w/o light that is in fact past...

@mgtfb , Is this a soft side test kit bag w/ foam insert that you bought separate from the chemicals? If it is a completed test kit that you purchased? Either way, can you supply a link? It looks cool. I have a Taylor K-2106 kit. Do the Speed & Smart stir units fit inside the hard plastic...

I was very surprised to see my TA jump from 50 to 80ppm after I had added 1.2 oz of Dichlor (SpaGuard Chlorinating Concentrate 99% Sod. Dichlor Triaz. Dihydr.) and 15 gals of fresh water (TA 310ppm). The 80 TA reading was 20 mins after Dichlor had been added. I tested TA again 2 hours after...

We are instructed to keep the 'Cover Off' for 5, 10, 15, 20, mins after chemicals are added while the 1-2 pumps are circulating to allow for the initial high off gassing period. Is it just Chlorine and Dichlor that this is important for (w/ a chlorine tub) to lessen gas damage to the underside...