That is the percentage. When you look at the calculator on the FC row, by default it may say "6" for a percentage. You can change it to 8.25, 10, 12.5 etc based on what product you are using.
Pool guy [...] is heading to BJ's to get a bag of baking soda to lower TA.
If you are trying to convert to our methods and you have algae then the solution is a SLAM. It can't be done once a day. The absolute minimum is twice a day and at that decreased rate it takes longer to clear the pool.
Understood. Pool guy is going to be checking often and cleaning once per day, and I am speaking with the property manager today to make contact with the tenant so I can explain what's going on and what's needed. I believe she will be on board.
You are having difficulties changing the pool guy, I get that - but we don't usually recommend clarifiers and floculants. They can make matters worse with clouding water and clogging filters if too much is used or if used incorrectly.
You indicate that the filter is working because the "backwash is green". It's good the filter is working, but a working filter has nothing to do with eradicating algae, chlorine does.
This stems from wondering why there is so much debree in the water - leaves grass, etc. (Is the pump and filter working properly?)
You have to do several things -
1. Stop using solid forms of chlorine. It raises your CYA. You don't want the CYA any higher until all algae has been eradicated.
all over the no more solids. CYA between 30 & 40 this morning. Leaving it alone.
2. Reduce pH to 7.2. I would suggest using muratic acid rather than pH reducer. MA went in last night.
3. Stop fooling around with TA. That is the last thing to worry about. You gotta kill the algae first. Got it.
4. Get that pool up to shock level. As you were at 30CYA and you have tabs in the water assume 40 and use that to determine shock level.
5. Brush the entire pool once a day.
Where you are going to have problems is testing. To end the SLAM you need to pass OCLT which means testing FC after the sun is off the pool and again before the sun is on the pool in the morning.
I don't usually like to offer "advice" because I still consider myself a novice. However, I have been using this site and the TFPC (or originally the BBB) method for 6 seasons now. My pool is generally clear and when it isn't I can usually tell you why and correct it within a couple of days. The information here works and the people that offer their advice are incredibly knowledgeable and patient. It's been an absolute blessing to have found this place 2 months before I had water in my new pool in 2010.
All that to tell you that I think you really need to do 2 things. One, you need to take about 2 hours one evening (sooner than later) and read "Pool School". Then as you have a chance, look through the current/old posts in the TFPC thread or this one to see what other problems people have had and how they dealt with it. Two, you need to properly teach the tenant (not the pool guy) how to take care of this pool.
I only say this because it seems like you may not quite understand the process. It really is pretty simple. I have 3 things that go in my pool.... chlorine, CYA, and acid. That's it, period, for the last 6 years. Once you realize what the process is and why you do it, the other stuff is pretty simple. You add CYA and chlorine, brush and vacuum, then check the water frequently. When the chlorine is low, you add chlorine... when the ph is high, you add acid.... when there is algae in the pool, you slam it.
I'm terribly oversimplifying the process.... but even that's an odd statement because it's a simple process!
Anyway, I think you'll benefit from teaching your tenant because they are the ones that will be at the pool most frequently. They live there and they're the ones that are "entertaining on Fridays"... it seems like they'd be willing and happy to be the ones learning how to keep it clear. If not for simply being able to have a clean pool for their guests whenever they wanted...but at least for their own health. If you need to SLAM the pool, they (not the pool guy and certainly not you) are going to be in the best position to do it.
I think the best way to teach them is for you to really understand what is going on. Maybe you do, I'm not trying to assume too much, but it seems like some of your understandings are off a little (baking soda for pH decreasing, hesitancy to SLAM, insistence on using pucks, unfamiliarity with 8% bleach). I'm not attacking you here at all, just using those as examples. I'm certain that you can figure it out quickly and help the tenants be your eyes/ears on the pool front. The pool guy should be your professional go to when there are problems that don't make sense; the tenants should know how to take care of the pool.
keetman, in an ideal world I would tend to agree with you about the tenants, I however know too many people who own rental properties (friends, relatives, etc.) and have heard way too many horror stories about it. So I feel it is likely that the tenants would decide TFP was too much trouble and if you are lucky they would dump a jug or two of bleach into the pool without ever testing from time to time when they remember, and if not then it would be a lot worse.
You are absolutely right that I don't have a firm grasp on everything. I have read and even printed out several pertinent pages from PS for quick reference. The issue comes in that I learn best with hands-on. Obviously, not possible. Add in that I was traveling yesterday (navigating for the driver), switching back and forth between bookmarks on my phone and the app for the forum, plus telling pool guy where to go for what items and how much to get, and juggling property manager for another rental where we have been without a tenant for near 3 months, and yah, I had a bit going on yesterday that made things even more difficult.
But I sincerely appreciate your (and everyone's) input and help! (Could you imagine where I'd have been without it?!)
No, but because the pH test will read artificially high with FC above 10 you are blind as to what his additions did. You could plug your numbers into Pool Math and see what it should have done.
Obviously there is a miscommunication somewhere.
During a SLAM FC and CC are the only things tested. Your FC should be above 16 as much as possible.