I basically follow baquacil's directions for application of Line Clean.
Wow...thanks so much for all that info. It's nice to get an encouraging post compared to the usual "you need to switch to chlorine" variety. If you've been reading my posts from last year, you undoubtedly know about the fiasco I ran into with doing a heavy-duty algae treatment right on top of a line-clean treatment. Stupidest thing I've ever done with the two treatments so close together; however, subscribing to the old adage that 'good often comes from bad', I started using Line Clean as a weekly treatment. There are seemingly no instructions for doing so but I started adding 1/2 pound just about every week. Line Clean followed by 1/2 gallon of peroxide 3 days later, followed by Line Clean again 4 days after that. It worked like a charm from mid-August through the end of the season with virtually no problems. No mold, clear water, easy-peasy. Hated to close the pool when it came time. This season the jury is still out on how things will go relative to filter cleanings. So far it has been more than I was hoping for, but it has also been a bit of an unusually rainy spring thus far. Thankfully there were NO issues whatsoever with the recent field cutting / raking / baling by the farmer who works the field right next to the pool. That surprised me. Last year things went crazy immediately after that. This time, however, water stayed clear. The water has really never seemed better. Reminds me of immediately after it was refilled following the renovation. When mold becomes a problem, as you undoubtedly know, the water has a different feel and smell to it. I'm not experiencing any of that. Hate to get out of the pool everytime I'm in it. That has not always been the case for sure. One thing I've always liked about baquacil is that there's really no need to test the water every day. I'll check the biguanide level every few days, plus add occasional algicide. Admittedly, my peroxide tests always show a level that calls for more, but, hey, if the water's clear - it's clear - and good enough for me. The line clean is possibly mitigating whatever ill effects might otherwise result from neglecting to add enough peroxide (?) In the past, as you also probably well know, the water can start to cloud quickly if peroxide level is too low. Plus, with using the line clean, I've reduced my CDX use by over half. Again, just doesn't seem to need it.
Oh well..."knock on wood" as the saying goes for good luck. Watch all heck break loose now that I've written this glowing endorsement for line clean....
The Line Clean instructions say to add to skimmer
That's what I do. I also have never seen any sort of color change since using it.
saving my filter (sand filter).
Ahh....somewhat different situation, from what everyone tells me, relative to using biguanide, compared to DE. Basically pool store advice, but have heard from others as well that sand works better with biguanide - less issues with the mold, etc. (?) I can't speak to it though having never used sand.
benefit from using boron (borax)
Interesting...never used that either.
I am now basically using it as my shock,
Yes...I'm wondering if this could well be the key to making biguanide work long-term. I'm cautiously optimistic and am still open to converting to chlorine if things turn out to not go as well as I'm hoping for. I do think, though, that I might now be at the same place where I was last summer after things settled down with the fumes and strong odor. IF I still need to change the DE on a weekly basis AND the water stays in good shape without having to deal with accumulations of mold/slime, I can live with it. Is a weekly cleaning more than I prefer? Definitely, but I'll take that over converting back to chlorine at this point. That conversion process, for one thing, sounds like as much (or more) work as possibly all the filter cleanings I could wind up doing for an entire season, with the exception, of course, being that once it (the conversion) is done, it's done. All the above being said, if I wind up in a situation where the filter pressure goes up significantly every 3-4 days, I can't do that. Then it's time for a conversion to see what would be different at least with regards to the filter. People here using DE and chlorine report hardly ever having to change the DE. That does indeed hold some appeal. Can't even remember what that was like anymore.
i looked around for that "Assist" product you've mentioned and can't find it either.
It was discontinued. I think I managed to find one of the last containers (and this was probably 3+ years ago by now) online- possibly eBay - and the seller was charging an exhorbitant price....kinda like toilet paper during the start of the pandemic
