How often should I shock my hot tub?

Weekly is the baseline for a tub in regular use, with an extra dose whenever there's been a heavy soak or a party.

What is the difference between chlorine and non-chlorine shock?

Chlorine shock pushes free chlorine up and disinfects hard. Non-chlorine shock oxidises the waste without lifting chlorine, so people can get back in sooner.

Can I shock and balance on the same day?

Yes. Sort the pH first, leave it an hour, then shock. Keep the cover off while you shock so the chloramine gases can escape.

How long should I leave the cover off after shocking?

Half an hour minimum. Put it back too early and you trap chloramine vapour, which then goes to work on the shell, headrests and pillows.

When can I get back in after a shock dose?

As soon as free chlorine is below 5 ppm. After a routine maintenance shock with the pump running, that's generally 1 to 2 hours.

Spa Pool Shock Treatments

Routine sanitiser only goes so far. Shock dosing tackles the chloramines, sweat and organic gunk it leaves behind. Make it a weekly habit and the water stays fresh, clear and free of odour, even when the tub sees plenty of use.