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About

We just wanted to enjoy the tub.

Why Ovastra

Hot tub care shouldn’t feel like chemistry homework.

Owning a hot tub should be about the soak, not test strips, half-empty buckets and guessing how much to pour. Ovastra started from a simple idea: if we know a little about your tub, we can work out what it needs and send exactly that, measured and ready.

What we believe

Simple, right-sized, honest.

Simple

One packet, one dose. Clear steps anyone can follow.

Right-sized

An estimate built for your tub, so nothing goes to waste.

Healthy water

Balanced water is more comfortable and protects your equipment.

Honest

Charged for what your tub uses. Cancel anytime.

Coming soon.

Built for owners who'd rather soak than play chemist.

Try the calculator