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    rising ph

    Hi. I seem to have trouble with rising ph in my hot tub. I have a bromine tub with a floater wich keeps my bromine level around 5 ppm i also have an ozonator. I am hardly using the tub at the min cause weather is rubbish here in UK so the tub isn't getting much airation but no matter what i do...
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    testing Alkalinity

    Hi, i have a palintest tablet count kit for ta which seemed to be ok when the ta was higher. it was around 90 but my ph kept rising so kept adding a little more acid. now that ph seems to have stabilized i don't know what the ta is because when i add just one tablet it goes to light pink...
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    Lowering TA

    Hi, I am in the process of balancing my water. My original TA was 300 and so far by following the acid/airation method I have added 400g in total of acid and it is still only on 140. What would be the normal amount to have to add altogether to get the TA from 300-100. My tub holds a 1000ltrs...
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    Fas-dpd

    Hi Can I use a fsf-dpd chlorine test for bromine just by multiplying the result by 2.25? Thanks Dan
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    Does ta increaser raise ph?

    Hi I know that u can use baking soda to raise ta but i already have a tub of ta increase will this raise ph as well? Also am i correct that ph increaser will raise ta and that u need to use borax cause im in the UK and we don't have borax and i don't know what the equivalent is.
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    Is this bleach ok

    Hi I bought some cheap thin bleach from my local supermarket. I live in the uk so it's tesco's value own brand. It's the only one I could see that looked like normal bleach all the others were thickened and scented. It says on the bottle Contains less than 5% chlorine based bleaching agent and...
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    General bromine questions.

    Hi, I am refilling my spa soon and want to do it right with the 3 step bromine system and I have a few questions. On previous refills I just added the bromine tabs and used a granular bromine product which can be used as regular sanitizer or as a shock treatment (I think it's a mixture of...