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I've been doing some water softening experiments and have discovered something that has me scratching my head. My assumption all along has been that if you add salt to water you will reach a point where no more salt can be dissolved and so any additional that you add will simply remain solid...

Ah yes, I see what you mean. Different wavelength than good-old sunlight. I think I may have found the culprit this weekend -- green slime inside the wall fountain return. When this is disabled and the return jets are the only path back, water sits inside the fountain all the way up to the...

I appreciate all of the answers. Indeed I'm learning that 6.8-7.0 doesn't last very long at all. It is always back to 7.2 within several hours. I rely on my kids' telling me if the water stings their eyes. They'll complain if the water get's too alkaline (7.8 is where I recall the...

How low can I safely lower my pH assuming my CSI stays in the balanced range? By safely, I mean lack of damage to pool plaster and possibly other equipment or stone, tile, concrete. What I'm getting at, is it the CSI that really matters for corrosion vs scale but we instead focus on a "normal"...

Great info in that thread, thanks. Indeed I've been eyeing the IC40. 10-4. The only stonework I have is the coping around the perimeter of the pool, and my guess is that it's limestone. Sealing it makes good sense. I did this experiment last night. 2ppm loss oclt with UV on and pump...

Ok. I will deal with it then. I continue to search for a local supply of bulk quantity liquid chlorine (I chlorine inject into my well water too, but much less than the pool uses) as well as salt (for softening). Driving over to the big box stores has been my best bet so far. On the upside...

Yes! I used a syringe to measure it too! Thanks for catching that. I edited my previous post for anyone that comes along later. Thanks for the explanation, very helpful. So after a day of heavy sun and extreme UV (according to the weatherman) my FC measured at 5.5ppm. This required 45oz of...

- I did as you suggested with the CH test: 5ml sample, pre-add 20 titrant drops, then 10 buffer drops, *two* indicator drops, then proceed as usual with the titrant. My solution immediately turned the dreaded purple as soon as the indicator went in. I still fought with fading endpoint, but it...

Thanks for the quick and detailed reply! 10-4. I will do that this afternoon. The Taylor instructions only suggest a 10ml sample to get a 25ml drop step. A 50ml step sounds great. However, do I need to reduce the buffer and indicator by an appropriate amount too? I'm not opposed to...

Hi, My fill water comes from a very deep (~600 ft) private water well. The water that it produces is off-the-charts high in calcium hardness. 127 grains/gallon the last time I measured it -- very tedious to count that many titration drops! So as you can imagine the CH of my pool is always...

Thanks! Indeed I recently learned about the potential for the CYA->ammonia issue reported on TFP and included on a negative Amazon review. What a mess! Anyone thinking about using this stuff needs the full disclosure: 1. You are very lucky and you get a 100+ CYA ppm reduction. 2. You have...

Hi, I'm new to pool ownership and this forum, and wanted to share the good results I had with BioActive. I posted a favorable review on Amazon, and have duplicated some of the information here since this forum has helped me learn a great deal. TL; DR: I followed the directions closely and...