Surface Cleaner / Water Line Cleaner

Cuts greasy bath-tide and waterline marks from hot tub and pool surfaces. A pH-balanced spray that lifts the band of body oils and lotions left after every soak, with no abrasion to the shell.

• Removes the greasy waterline band caused by body oils and lotions.
• Cuts soap and bath salt residue without scratching acrylic.
• Restores the original gloss to the spa surround.
• Prevents dark scum building up over time.
• Safe for vinyl liners, acrylic shells and tile waterlines.

Sizes and prices

• 1L: £9.80
• 2.5L: £14.14
• 5L: £21.37
• 10L: £35.83
• 20L: £64.76
• 25L: £79.22

When you need it

• A grey or brown line is forming at the waterline.
• The cover sill or surround feels slick or greasy.
• You are draining the tub for a quarterly clean.
• You have just removed the cover for the first time in spring.
• You want to deep-clean before guests arrive.

How to use

1. Drain the spa or lower the water 5 cm below the waterline.
2. Spray Surface Cleaner directly onto the affected area.
3. Leave to dwell for 2-3 minutes; do not allow to dry on the surface.
4. Wipe off with a clean, non-abrasive microfibre cloth.
5. Rinse the area with fresh water before refilling.
6. Refill the spa and rebalance the water.

Dosing guide

Use neat as a spray. One trigger spray covers approximately 0.1 m2 of soiled waterline.

• For Hot tub waterline (1,500 L tub), add 30-50 ml to reach Standard clean.
• For Swim spa waterline (5,000 L), add 100-150 ml to reach Standard clean.
• For Pool waterline (10,000 L), add 200 ml to reach Standard clean.
• For Cover underside, add 30 ml to reach Mould prevention.
• For Heavy stain (per spot), add 10 ml + 5 min to reach Spot clean.

How it works

A low-foaming pH-neutral surface cleaner combining biodegradable surfactants with mild builders. Free of solvents, abrasives and bleach.

Surfactants surround droplets of body oil and lotion, lifting them off the shell into the cleaning solution where they can be wiped away. Mild builders soften the soiling without raising pH enough to attack the acrylic or vinyl substrate.

Body oils accumulate at the waterline because that is where bathers float. Without removal, the band oxidises into a dark stain that becomes harder to clean each month. Routine cleaning at every water change keeps the shell looking new and reduces the load on the filter.

Frequently asked questions

Can I use it while the spa is full?

Lower the water 5 cm below the waterline first; do not spray into the bulk water.

Is it safe for acrylic shells?

Yes. The pH-neutral formula is safe for acrylic, vinyl and tile when used as directed.

How often should I use it?

At every water change and after any heavy bather event.

How many cleans does 1 L cover?

Around 10-15 hot tub waterline cleans.

Will it remove sun cream?

Yes. Surfactants are formulated to lift sun cream and other bather oils.

Can I use it on pool tiles?

Yes. Spray, dwell 2-3 minutes, wipe and rinse before bathers re-enter.

What is the pH of the cleaner?

Approximately pH 7-8, gentle on shell substrates and bather skin.

Does it contain bleach?

No. The cleaner is bleach-free and chlorine-compatible.

Will it damage the cover?

No. Spray on a cloth and wipe the cover underside; do not soak the foam core.

Stain has not budged?

Reapply and dwell 5 minutes; finish with a non-abrasive nylon pad.

Tub foaming after refill?

Rinse the shell again, refill, and dose Foam Away if needed.

Surface feels sticky after cleaning?

Product was left to dry. Reapply and wipe immediately, then rinse.

Surface cleaner vs filter cleaner?

Surface cleaner targets the visible shell and waterline. Filter cleaner targets the filter cartridge.

Surface cleaner vs household spray?

Household sprays often contain solvents that attack acrylic. The ClearSpa formula is shell-safe and chlorine-compatible.