Historically this has proved very difficult to remove, even when using the harshest of chemicals. But it's no longer a problem, the AquaFinesse Spa Clean Puck will thoroughly rinse the system by loosening the ground on debris and calcium deposits from deep within the spa.
eBay
Hot Tub Scum Sponge Octopus Pool Oil Sponge Absorber Soft Sponge Filter With High Absorption Cleaning Tool For Spa Hot Tub
Aliexpress UK
ProKleen Hot Tub & Whirlpool Complete System Flush Cleaner 2 x 5L & ProKleen Hot Tub & Spa Surface Cleaner 2 x 1L. PROKLEEN SURFACE CLEANER 2 X 1L. Keep your hot tub surface clean and dirt-free with this easy-to-use Formula.
eBay
1PC Swimming Pool Mesh Strainer Hot Tub Spa Cartridges Protective Net For MSPA Hot Tub Spa Filter Cartridges Accessories
Aliexpress UK
Pro-kleen's Hot Tub & Whirlpool Complete System Flush Is A Professional, Powerful Formula Designed To Clean All Of The Plumbing And Pipework In Your Hot Tubs, Whirlpool And Spas. Our Hot Tub And Whirlpool Cleaner Is Sure To Remove The Biofilm, Leaving Your Whirlpool As Clean And Hygienic As Possible!
eBay
Universal Inflatable Spa Water Heater Pump Cover For Hot Tub Spa Heater Pump Waterproof Hot Tub Pump Cover Outdoor Pool Parts
Aliexpress UK
Pro-Kleen Hot Tub & Whirlpool Complete System Flush is a professional, powerful formula designed to clean all the plumbing & pipework. For hot tubs and whirlpools, simply fill with water to the top of the jets add 500ML to 1L of solution and run for 15 to 30 minutes.
eBay
Universal Inflatable Spa Water Heater Pump Cover For Hot Tub Spa Heater Pump Waterproof Hot Tub Pump Cover Outdoor Pool Parts
Aliexpress UK
This is a trade sized tub at 170g so should last for 9 or so flushes.
eBay
SPA Inflation Hose Plastic 41.7 Inch Inflatable Hot Tub Hose for LAY Z SPA P05341 Air Jet Massage Bathtub
Aliexpress UK
Swirl away is a deep clean for your hot tub, spa or whirlpool bath. 475 ml Swirl Away Pipe Cleaner.
eBay
Bathtub spa stainless steel connecting air jet, hot tub blower nozzle 60-15
Aliexpress UK
If not treated, a bio-film (bacterial film) can develop which can harbour harmful bacteria and reduce disinfectant efficiency. This product should be applied just prior to draining and re-filling your spa.
eBay
Inflatable massage bathtub, heated spa pool, bubble SPA, home hot spring couple bathtub
Aliexpress UK
Pro-Kleen Hot Tub & Whirlpool Complete System Flush 4 x 5L. Deeply Clean Your Hot Tub Internal System. Add 500ml of the solution per 1000L of water and run for 15 to 30 minutes. simply fill with water to the top of the jets.
eBay
Inflatable massage bathtub, heated spa pool, bubble SPA, home hot spring couple bathtub
Aliexpress UK