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Moderator Note: Split from this thread - can muriatic acid and baking soda be added to pool at the same time? - Page 3 But what about the addition of chlorine? Isn't it suppose to raise pH?

Is there a rough scientific explanation for the minimum (7.5% CYA) and maximum (11.5% CYA) FC levels recommended here or are they based on experience? I mean, I understand that HOCl is approximately 0.3*(FC/CYA) but how do we know how much HOCl is considered sufficient? I apologize if that has...

The TA in my pool (180 m3) has dropped to about 60 ppm and I thought I should raise it to around 80 ppm by adding 5-6 kg of sodium bicarbonate. Is there a reason I should turn off the automatic pH adjuster while raising TA?

My brand new Dolphin Wave 100 pool cleaner has a hard time climbing the walls to clean the waterline. Specifically, it looks like out of 20 efforts it may manage to climb the wall once. I am certain that the filter is clean because we clean it essentially after every use. The local distributor...

I am managing a small private pool with 20-30 swimmers/day. I am thinking about investing on an ORP chlorine feeder in combination with automatic pH adjustment. What do you people think about this kind of equipment? Also, am I right in thinking that chlorine dosing to achieve a certain ORP...

New to the forum and just beginning to digest this CYA-dependent FC dosage. I have a couple of questions. 1. Does CYA affect the FC measurement in any way? Will the FC that is bound to CYA still be measured by pool testing kits? I am using Lamotte's ColorQ Pro7. 2. Since I am the manager of a...