Bio Ouster 3in1 ウィークリーコールドプランジ水処理 - コールドプランジクリーナー、クラリファイヤー、柔軟剤 - コールドプランジ用ウォータースタビライザー アイスバスクリーナー コールドプランジアクセサリー (32オンス)

Good price and easy to use. It definitely made the water clearer in about 20-24 hours.

Easy and simple to use, straight forward instructions and dosing, great value as once initial dose is done periodically topping up required, good size last and water clarity and smell is great

By far the best for my cold plunge. I have tried them all and this one lasts and just a little bit goes a long way.

I spent 40 euro on this thinking it would keep my cold plunge clean and safe. At first the water looked clear but after three days I started to notice itching on my skin every time I got out. That is when I learned this product is only a clarifier and softener. It does not sanitize the water. The label says you still need to buy a separate sanitizer such as chlorine or bromine. So on top of the 40 euro already spent I now have to spend more money elsewhere to make the plunge usable. It might help with water clarity but it is not a full solution and it gave me skin irritation after a short time. If you want a safe cold plunge you will need to add a real sanitizer.

Delivered as promised. Works great in my cold plunge. Highly recommend. Just set cold plunge for the season. Add the bio ouster, water was crystal clear within about an hour