Keeping a hot tub clean takes about 10–15 minutes a week: test and balance the water, add sanitiser, rinse the filter and wipe the waterline. Add a deep filter clean monthly, and drain and refill every three to four months. Irish winters bring a few extra jobs around covers and frost.
Every day you use it
- Shower before getting in to keep oils and lotions out of the water.
- Keep the cover on and locked whenever the tub is not in use.
Every week
- Test the water with strips: sanitiser (chlorine or bromine), pH (aim for 7.2–7.6) and alkalinity.
- Adjust chemicals as needed, adding them with the jets running.
- Rinse the filter with a hose.
- Wipe the waterline and check the cover for damage.
Every month
- Soak the filter in a filter cleaner overnight.
- Shock the water to break down organic waste.
- Clean and condition the cover to protect it from rain and UV.
Every 3–4 months
- Use a line flush, drain the tub, clean the shell and refill.
- Replace filters roughly once a year, or sooner with heavy use.
Winter in Ireland
- Keep the tub running in winter; most have frost protection that circulates water.
- Check the cover is not waterlogged, as a heavy cover loses heat.
- If you will not use it for months, have it properly drained and winterised.
Prefer someone else to do it? Ask about hot tub servicing.
Frequently asked questions
How often should I change hot tub water?
Every 3–4 months for most households, sooner with heavy use.
Why is my hot tub water cloudy?
Usually low sanitiser, unbalanced pH or a dirty filter. Test the water, clean the filter and shock the tub.
Can I use a hot tub without chemicals?
Not safely. Ozone and UV systems reduce the chemicals you need, but you still need a sanitiser.
Get a free hot tub quote
Electric, wood-fired, inflatable or hire. All 32 counties.
