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Thank you all for your responses. I have used bromine alone successfully for over a decade but when we moved and set up a new spa (same model as before), we started doing the bromine/chlorine regimen outlined on this web site. Will try slight increases in CH as suggested by several of you. If...

We change the water every 3-4 months. we do not have a foaming problem day to day. Only immed after we add the liquid chlorine shock.

No other products. No clothing in spa No hair in spa Change water every 3 to 4 months. We only have the foaming immediately after adding the liquid chlorine. Prior to adding, no foam.

Calcium Hardness 160 bromine 5 pH 7.8 Total Alk 70 total and free Chlorine both 1 (before I shock)

We are using bromine tabs in our hot tub and shocking with liquid chlorine bleach weekly. Initially we made the mistake of using the splash-free laundry bleach which caused tremendous foaming, to the point where it was flowing over the sides of the spa. We have since switched to concentrated...

I have a Hot Spring Saltwater Hot tub that uses a cartridge to maintain the chlorine level in the water by breaking down the salt in the water. The cartridges are supposed to be good for 3-4 months but a 3-pack of replacement cartridges costs $250. Is there a way I can clean or refurbish my...

First, I want to say this has so far been the best season with our pool thanks to the information provided on this site. We have saved a ton of money compared to what we have spent on chemicals in the past based on recommendations from our local pool store. We have used a portion of those...

Thank you!! This is the process we did last year and incorrectly assumed we were removing copper stains. Just re-read the article and noticed near the end it mentions iron. The exciting thing is this means we can reconnect the heater. Hooray. Have nothing to do while Sheltering in Place, so...

We live in Georgia where the soil is red from iron oxides, so it would make sense that we have iron staining, but I'm still confused as to why the Vitamin C removes it.

We are on city water. Are saying Vitamin C will remove iron stains?

First, a thank you.....I have been a pool fool for years, blindly doing whatever the local pool store told us to do. I discovered your site last Fall and am a total convert! Just finished our first ever SLAM with $50 worth of liquid chlorine as compared to the $2-300 we usually spent on...

Thank you for your quick response. Where do I find the Pool Math app? Is it an app I get in the apple app store? Regarding the water testing, I have a blue plastic box with lots of color coded bottles of chemical. I can test for free and total chlorine, alkalinity, ph, cya, calcium hardness...

Last year used Pool School advice and removed phosphates from pool and stopped using algaecides. Unfortunately in our area in Georgia the spring pollen load is huge, so in less than a week we went from clear water to bright neon green water. Surprisingly, phosphates still read as zero. We...