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I'm ready to drain & refill (or maybe just fill in:mad:) I can't figure out what is happening. I thought it was mustard algae, so I did that version of SLAM, passed all the hurdles, then kept my FC 8-10. Everything was fine, until I woke up one morning and it was 5. Then the mustard spots...

Solved! I just washed out my cylinder with bleach, and not only did it get rid of that dark overcast residue, but I retested and my FC level is still the same (actually 1 drop higher?) but the CC was 0, or maaaaybe 1 drop needed if I stare really hard. I’ve never heard of needing to rinse out...

With a CYA of 40 my SLAM level should be 16. My current FC is above that at 17 and I still have CC. So what now? Should I slam at a 50 CYA level since that test can be difficult to read?

I've done so much testing but if I'm recalling, yes I think it has always been at 1, not higher or lower. So I'll SLAM again - regular level or elevated mustard level? Should I do it now (9am) or wait till evening to lose less chlorine?

Regular level or elevated level? Should I do it now (9am) or wait till evening to lose less chlorine?

We had a mustard algae outbreak last weekend which I treated with the SLAM/Mustard SLAM process (so much brushing!) Everything looks clear, and we passed the ONCL test last night/this morning...but I can't get rid of the CC. Do I just need to give it more time or do I need to spike my levels...

We have what appears to be yellow dust ont he bottom of some spots of our pool. We don't notice it until we brush - sometimes it look slike just dust and sometimes it definitely has a yellow tone. We passed the ONCL test twice in a row (last one was 16 drops at sundown, 15 at sun up, but that...

We got our Dolphin Nautilus in 2017. We left it out while we were away this weekend, and the control unit took on a lot of water and no longer works. Should I replace just the power unit ($300) or buy an entirely new Dolphin? Ths is our 1st one, so I'm not sure the lifespan and don't want to...

I guess the idea of stagnant water is troubling to me? I always thought it needed to move a little to keep things circulated every so often (more than just upon introduction), not turn-over persay, but just as I guess I little "freshing up". So in theory if there's no need to skim debris - a...

It was my understanding that it is best practice to filter water and keep it moving in general - even those w/o a salt cell to worry about have min amounts they must move their water (we converted to salt and used to be one of those LC pool owners - we ran our pump more than just to skim or to...

We must run on high several times per day or our pool becomes almost covered in debris. It looks like a marsh. 24/7 low isn't an option, and 24/7 high is unnecessary. We took a screenshot of what we did last year (ScreenLogic app)...and now can't find it, so I'm trying to recall what we did and...

With the warmer weather finally, we are ready to switch from LC to turning on our salt cell. We have a 30k gal pool surrounded by tons of trees. Every year we struggle with the best plan of when to run our VS pump on high or low (and what RPM those should be) and which setting to have producing...

We've had tiny bubbles coming from all returns (including spa jets when off) for a few weeks now. There are tons of bubbles in the pump basket and the basket just before the SWG as well. The pool guy that came out to reinstall the wall grates said it was either a leak somewhere or the pump isn't...

Current levels after clearing opening algae. What order should I adjust? NOTE: due to water temps we are working as a traditional pool w LC for the next few weeks before our salt cell will make chlorine. FC: 5 CC: 0 pH: 7.0 TA: 40 CH: 225 CYA: 90 I'm thinking I should get to these levels but...

Since we're leaving for spring break this morning I opted not to start an official SLAM since I wouldn't be able to see it through. Instead we continued to filter, brush and vacuum. I did an OCLT - 11 drops last night, 11 drops this morning and the pool in noticeably clearer this as well (...

I did it again and def see at 50 and not at 40. I attached a few photos in different lighting. I had my husband run also and he too said he could see at 50 and not at 40 when he was standing outside (very overcast day but the sunniest option we currently have)

At 50 I can just barely make out the dot, at 40 it's completely gone. Does that put me at a 45 if such a line existed so a 90? THanks for your help!

WE used a new PC to open this year, and they dumped a ton of shock (I believe he said 20 lbs) & algaecide then said to run pump 24/7 and backwash every 6ish hrs. THat was Tue morning, and it is now Saturday morning with a ton of improvement in the 1st 1-2 days and little since then. I can see...