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Thanks Maddie! For the vitamin test what type of tablets do you use? I saw online there are test kits for this test too. For the chlorine puck is there any possibility it could stain my fiberglass since it’s a dark blue gel coat? Thanks again!

I also think I have stains in my pool from the chemicals they were using. Minor stains but they are there.

Thanks Dave! When you say treat it immediately after filling it, do you just mean with chlorine as part of start up? When our pool service opens the pool they do an initial shock to start up. Makes sense how pool company would do that. I actually stopped using service for that reason as I found...

Is the colorQ Pro 7 by Lamonte a reasonable reliable kit? We bought it at the beginning of the season and it seems consistent and reliable. Will it be reliable for the over night test? I know it’s not the recommended one on this forum, but as we already spent $150 on it I’m not inclined to...

Hi All, I have this question as it’s my first summer managing chemicals myself. The pool store who’s service I used to use suggest using a large dose of algecide as preventative and then doing weekly dose for maintenance. Is this required or just extra chemicals in pool that you don’t need...

Hello, just came home from pool store where I mentioned I have what looks like faint stains on my dark blue fiberglass pool. They were quick to say to treat it as algea and use an algea treatment. It just doesn’t look like the black or green algea photos I’ve seen on line. Any advice on how to...

Thank you! I will!

Thank you! What is the minimum recommendation for CH for a fiberglass pool? I’m at about 100 right now.

Thanks! This is interesting. What’s the rationale behind this chart?

Thanks! At what level of CC does TFP recommend slamming?

Thanks! Is the idea still to try to reach FC at 10xcc to kill cc?

Hello All, I received different information from pool stores and the internet about low calcium. My calcium was at 70 at onset of summer. I raised it to over 100. I’m told by one pool company that low calcium isn’t as much as a concern for Fiberglass. That the problem with corrosion is more...

This is terrific, thank you! I kept wondering am I doing something wrong but that was my point. Why add high chlorine like that as a preventative measure. So if there is actually a problem then you slam:-). How about for Chloramines. What’s the best practice on TFP ?

Hello, this is my third year with my salt water pool and swg. We have only shocked the pool when the pool is first opened and 1 time when it wasn’t working and our chlorine went below zero. Otherwise the chlorine is always around 2-5ppm. There is advice all over the internet that you still...

Thank you! Very helpful.

That’s an interesting point and quite possible. When you say chalky, how do I identify that?

And I have public water. My calcium was low earlier in season but at over 100 now.

My chlorine has been maintained between 2.5 and 4 currently. PH is 7.8, but constantly going to 8. Alkalinity 99, CYA 60. I have a salt water generator that normally had the chlorine higher at around 5. And higher in previous years. The generator broke so while I am waiting for the replacement...

Hello Everyone, This is my third year owning a fiberglass salt water pool. I noticed I have what looks like staining around the pool. It’s around all of the walls and doesn’t seem green or black. More like a shadow of the dark blue color of the pool. I’m guessing this is staining from...