{"title":"Water Care — Wellis Crystal Range","description":"\u003cp\u003eWellis Crystal is the same water-care chemistry Wellis use to commission their factory test pools — engineered for Wellis spa materials and the WellisGuard™ sanitiser system, while also working with most modern third-party hot tubs and swim spas. The full range covers everything from sanitisers and balancers to flocculants, anti-foam, and pre-fill water treatment.\u003c\/p\u003e\n\n\u003ch3\u003eThe five essentials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest strips\u003c\/strong\u003e — \u003cem\u003eCrystal Pool Check 5-in-1\u003c\/em\u003e for free\/total chlorine, pH, alkalinity, and hardness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSanitiser\u003c\/strong\u003e — \u003cem\u003eCrystal Chlorine Tablets\u003c\/em\u003e in a floating dispenser, or active oxygen for chlorine-free use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH control\u003c\/strong\u003e — \u003cem\u003eCrystal pH Down\u003c\/em\u003e when pH rises above 7.6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlkalinity\u003c\/strong\u003e — \u003cem\u003eCrystal Alkalinity Balancer\u003c\/em\u003e stabilises pH so it doesn't swing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter cleaning\u003c\/strong\u003e — \u003cem\u003eCrystal Filter Cleaner\u003c\/em\u003e weekly rinse, monthly deep-soak\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTwo-minute schedule\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e2–3× per week:\u003c\/strong\u003e dip a 5-in-1 strip, top up tablets, adjust pH if needed.\u003cbr\u003e\n\u003cstrong\u003eWeekly:\u003c\/strong\u003e rinse the filter, add Bright \u0026amp; Clear flocculant.\u003cbr\u003e\n\u003cstrong\u003eMonthly:\u003c\/strong\u003e overnight soak the filter in Crystal Filter Cleaner.\u003cbr\u003e\n\u003cstrong\u003eQuarterly:\u003c\/strong\u003e drain, flush plumbing with Crystal Spa Cleaner, refill through a Pure Fill prefilter, rebalance from scratch.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"\/en\/pages\/water-care-guide\"\u003eRead the full Water Care Guide →\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003e⚠ Important — please read before use:\u003c\/strong\u003e Always follow the dosing instructions printed on the product label and on the Safety Data Sheet (SDS) supplied with the chemical. Consult your Wellis spa user manual for product-specific water-care guidance applicable to your model, water source, and usage pattern. Never mix water-care chemicals together directly — always add each product separately to circulating spa water with the pump running. The information on this page is provided as general guidance only and does not replace the manufacturer's instructions or professional advice. TwoRelax accepts no liability for damage, injury, water-quality issues, or equipment failure resulting from incorrect use, improper dosing, mixing of incompatible products, or failure to follow the manufacturer's instructions.\u003c\/em\u003e\u003c\/p\u003e","products":[{"product_id":"wellis-crystal-standard-chemical-package","title":"Wellis Crystal Standard Chemical Package","description":"\u003cp\u003eWellis Crystal Standard Chemical Package — the recommended starter bundle for new Wellis hot tub owners. Contains 2 L Wellis Water Treatment, 18 chlorine tablets, a floating chemical dispenser, and a microfibre cleaning cloth.\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371812659582,"sku":"WLS-WC-STD-PKG","price":159.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/wv00134.jpg?v=1778072156"},{"product_id":"wellis-crystal-premium-chemical-package","title":"Wellis Crystal Premium Chemical Package","description":"\u003cp\u003eWellis Crystal Premium Chemical Package — the comprehensive bundle covering the full range of routine and corrective spa chemistry. Best value for owners who want to buy once and have everything on hand.\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371812823422,"sku":"WLS-WC-PREM-PKG","price":329.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/WV00135.jpg?v=1778072160"},{"product_id":"wellis-crystal-swim-spa-chemical-package","title":"Wellis Crystal Swim Spa Chemical Package","description":"\u003cp\u003eWellis Crystal Swim Spa Chemical Package — the starter kit for Wellis swim spas (Amazonas, Danube, Beach Club, Elba, Rio Grande). Scaled for the 3,000–4,000 L water volumes typical of swim spas.\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371812987262,"sku":"WLS-WC-SS-PKG","price":209.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/WV00086_1.jpg?v=1778072163"},{"product_id":"wellis-inclear-v2-chemical-package","title":"Wellis InClear V2 Chemical Package","description":"\u003cp\u003eWellis InClear V2 Chemical Package is the complete starter kit for spas equipped with the in.Clear V2 bromine generator. Contains everything needed to commission the in.Clear system on a fresh-fill spa.\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371813347710,"sku":"WLS-WC-INCLEAR","price":399.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/WV00097.jpg?v=1778072167"},{"product_id":"wellis-crystal-water-treatment-chlorine-free","title":"Wellis Crystal Water Treatment Set (Chlorine-Free)","description":"\u003cp\u003eWellis Crystal Water Treatment (Chlorine-Free) is the base sanitiser for users who can't or prefer not to use chlorine. Uses an active oxygen system instead, with no chlorine smell and very low skin irritation. Sold as a complete chemical package.\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371813511550,"sku":"WLS-WC-CHFREE","price":89.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/WV00101_1.jpg?v=1778072170"},{"product_id":"wellis-crystal-set-big","title":"Wellis Crystal Set (Big)","description":"\u003cp\u003eWellis Crystal Set (Big) is a mid-tier bundle of essential Wellis Crystal water-care products. Contains the most-used items for routine maintenance — between the Standard and Premium packages.\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371813642622,"sku":"WLS-WC-SET-BIG","price":99.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/WV00081_1.jpg?v=1778072173"},{"product_id":"wellis-crystal-bromine-salt-bromicharge","title":"Wellis Crystal Bromine Salt (Bromicharge 2.2 kg)","description":"\u003cp\u003eWellis Crystal Bromine Salt (BromiCharge) is sodium bromide for spas equipped with the in.Clear bromine generator. The in.Clear electrode converts the dissolved bromide into active bromine sanitiser on demand. 2.2 kg box.\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371813773694,"sku":"WLS-WC-BROM","price":169.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/WV00068.jpg?v=1778072176"},{"product_id":"wellis-crystal-chlorine-tablets-1kg","title":"Wellis Crystal Chlorine Tablets (1 kg)","description":"\u003cp\u003eWellis Crystal slow-dissolve chlorine tablets are the standard sanitiser for Wellis spas using the WellisGuard™ system. 1 kg pack — typically 50 × 20 g tablets at 90% active chlorine.\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371813937534,"sku":"WLS-WC-CHL-1KG","price":39.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/WV00074.jpg?v=1778072179"},{"product_id":"wellis-crystal-chlorine-tablets-18pcs","title":"Wellis Crystal Chlorine Tablets (18 × 20 g)","description":"\u003cp\u003eWellis Crystal chlorine tablets — small pack of 18 × 20 g slow-dissolve tablets (90% active chlorine). Same chemistry as the 1 kg pack, sized for top-ups or smaller spas.\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371814101374,"sku":"WLS-WC-CHL-18","price":19.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/WV00098_1.jpg?v=1778072183"},{"product_id":"wellis-crystal-active-oxygen-granules","title":"Wellis Crystal Active Oxygen Granules (1 kg)","description":"\u003cp\u003eWellis Crystal Active Oxygen Granules deliver the oxidising sanitiser into your spa water. Used together with the Active Oxygen Activator and the Crystal Water Treatment (Chlorine-Free) system.\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371814199678,"sku":"WLS-WC-O2-GRAN","price":59.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/WV00037_1.jpg?v=1778072186"},{"product_id":"wellis-crystal-active-oxygen-activator","title":"Wellis Crystal Active Oxygen Activator Liquid (1 L)","description":"\u003cp\u003eWellis Crystal Active Oxygen Activator works with the Active Oxygen Granules and the Crystal Water Treatment (Chlorine-Free) system to sanitise spa water without chlorine.\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371814330750,"sku":"WLS-WC-O2-ACT","price":59.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/WV00038_1.jpg?v=1778072190"},{"product_id":"wellis-crystal-ph-down","title":"Wellis Crystal pH Down (1 L)","description":"\u003cp\u003eWellis Crystal pH Down is a precise pH-reducing chemical (sodium bisulphate). Lowers high pH levels in your spa water back into the 7.2–7.8 range where sanitisers are most effective and bathers are most comfortable.\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371814429054,"sku":"WLS-WC-PH-DOWN","price":15.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/WV00096_1.jpg?v=1778072194"},{"product_id":"wellis-crystal-alkalinity-balancer","title":"Wellis Crystal Alkalinity Balancer (1 L)","description":"\u003cp\u003eWellis Crystal Alkalinity Balancer raises total alkalinity (TA) and prevents the pH from swinging. Total alkalinity acts as a buffer for pH; without it, pH bounces unpredictably even with small chemical additions.\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371814560126,"sku":"WLS-WC-ALK","price":23.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/WV00091_1.jpg?v=1778072197"},{"product_id":"wellis-crystal-bright-and-clear","title":"Wellis Crystal Bright \u0026 Clear Flocculant (1 L)","description":"\u003cp\u003eWellis Crystal Bright \u0026amp; Clear is a flocculant — it groups together fine particles too small for the filter to catch on its own, making them large enough to be trapped by the cartridge. Result: noticeably sparkling water.\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371814953342,"sku":"WLS-WC-BRIGHT","price":25.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/WV00090_1.jpg?v=1778072200"},{"product_id":"wellis-crystal-foam-down","title":"Wellis Crystal Foam Down (1 L)","description":"\u003cp\u003eWellis Crystal Foam Down is an oil-free anti-foam additive for spa water. Eliminates the foam ring that forms after heavy use, parties, or when soap residue from swimsuits enters the water.\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371815051646,"sku":"WLS-WC-FOAM","price":28.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/WV00093_1.jpg?v=1778072203"},{"product_id":"wellis-crystal-metal-clear","title":"Wellis Crystal Metal Clear (1 L)","description":"\u003cp\u003eWellis Crystal Metal Clear is a sequestrant that neutralises iron, copper, manganese, and other dissolved metals in spa water. Prevents staining of the acrylic shell, pump corrosion, and the green\/brown tint that sometimes appears after fresh fill.\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371815215486,"sku":"WLS-WC-METAL","price":22.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/WV00094_1.jpg?v=1778072206"},{"product_id":"wellis-crystal-spa-cleaner","title":"Wellis Crystal Spa Cleaner (Pipe Cleaner)","description":"\u003cp\u003eWellis Crystal Spa Cleaner is a pipe and plumbing cleaner. Used during quarterly water changes to flush biofilm, lime scale, and chemical residue from the internal pipework — places fresh water alone won't reach.\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371815313790,"sku":"WLS-WC-PIPE","price":55.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/WV00080-_1.jpg?v=1778072209"},{"product_id":"wellis-crystal-filter-cleaner","title":"Wellis Crystal Filter Cleaner","description":"\u003cp\u003eWellis Crystal Filter Cleaner is a specialised detergent for cleaning cartridge filters. Lifts oils, sunscreen, lotions, and biofilm that simple rinsing won't remove. Restores filter flow and extends cartridge life.\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371815412094,"sku":"WLS-WC-FILT","price":35.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/WV00079_1.jpg?v=1778072212"},{"product_id":"wellis-pure-fill-charcoal-prefilter","title":"Wellis Pure Fill — Active Charcoal Pre-Filter","description":"\u003cp\u003eWellis Pure Fill Active Charcoal Prefilter attaches inline between your garden hose and the spa during filling. Removes chlorine, chloramines, and many organic contaminants from your tap water before they enter the spa. Capacity: ~8,000 L of water (about 6–8 fills for a typical hot tub).\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371815575934,"sku":"WLS-WC-CHAR","price":38.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/WE00068.jpg?v=1778072216"},{"product_id":"wellis-pure-stream-water-softener","title":"Wellis Pure Stream — Water Softener Pre-Filter","description":"\u003cp\u003eWellis Pure Stream Water Softener is a resin-filled prefilter for filling Wellis spas in hard-water areas. Removes calcium and magnesium hardness from the fill water before it enters the spa, preventing scale buildup on heaters, pipes, and the acrylic shell.\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371815674238,"sku":"WLS-WC-SOFT","price":59.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/WE00067.jpg?v=1778072219"},{"product_id":"wellis-crystal-pool-check-5in1","title":"Wellis Crystal Pool Check 5-in-1 (Test Strips, 50 ct)","description":"\u003cp\u003eWellis Crystal Pool Check 5-in-1 test strips are the foundation of any spa water-care routine. One dip gives you a reading on five key water parameters in under 30 seconds. Each tin contains 50 strips.\u003c\/p\u003e","brand":"Wellis","offers":[{"title":"Standard","offer_id":57371815838078,"sku":"WLS-WC-TEST","price":19.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/8828\/5822\/files\/WV00083.jpg?v=1778072222"}],"url":"https:\/\/tworelax.com\/en\/collections\/water-care.oembed","provider":"TwoRelax","version":"1.0","type":"link"}