Nortembio Pool pH- Minus 5 L, Natural pH Reducer for Swimming Pool and Spa. Improves Water Quality, pH Regulator, Beneficial for Health.

I wish I found this product much sooner, so much easier and eficeint than the dry and disolve, bought our PH down in a few days brilliant product.

We have had trouble stabilising our PH levels and this sorted the problem straight away. I’m happy with my purchase

fast acting and concentrated .. noticeable difference in PH when applied to pool within a few minutes

Top notch service, great product and would use them again in a heartbeat

Easy to use

Really disliked the bottle. The safety feature of the lid was so strong I actually couldn’t open it and had to pierce the bottle to use the liquid which voids any safety features !!

1. Cannot be used in Salt Chlorinated pools - This isn't included on the description or on the Nortembio website.2. The instructions for amount to be used is ridiculous - 200ml to reduce 10m3 of water to 0.2 PH. Must be "by" 0.2 but the a standard 75k litre pool would need 1.5ltrs to reduce 0.2 PH. My pool is 8.4 PH hence I'd need 9 litres to get it to 7.2 PH. Can't be right. No information anywhere on line by Nortembio about dosage and luckily I found that this product is not suitable for salt chlorinated pools (not Nortembio information). Could have ruined my pool and killed my kids! Shocking! Come on Amazon, what is going on with your due diligence?

AVOID IF YOU HAVE SALT POOL. This is marketed as a natural product to reduce ph, so it seemed the perfect product for my salt water pool. When I bought it there was no warning on the amazon advert that this is not suitable for salt water chlorinator systems. There is no warning on the packaging either.I now have to empty and clean my pool before refilling it and Have a broken salt chlorinator electrode.None of the uk distributors That I’ve spoken to about this product have a clue about this product either and none could provide me with the msds for it. This is both illegal and potentially dangerous