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£9.98 inc. VAT
5 in stock (can be backordered)
Gold Horizons Spa Hardness Plus is an effective product used for increasing calcium hardness levels within your spa water. Calcium hardness levels should be maintained within the recommended range of 100 – 200mg/l (ppm) to ensure that the spa and spa equipment is protected.
Ideal Calcium Hardness Range: 100 – 200mg/l When the calcium hardness level is below 100mg/l water can become corrosive leading to damage to spa finish and spa plant equipment. Spa Hardness plus is used to increase calcium hardness.
Application Instructions
1. Before applying this product it should be pre-dissolved in a clean plastic container at a maximum rate of 10g per 0.2 gallons (1ltr) of clean cold water. Stir well to ensure the product is fully dissolved. Repeat application to achieve the total dose required. It is recommended that the total treatment is split into three equal applications with a minimum of 1 hour between each.
2. After pre-dissolving add the resulting solution to the spa with the filtration system in operation.
3. Following the application the spa water may become cloudy so keep the filtration pump running continuously until it clears.
4. After treatment check the pH level and if necessary adjust to ideal range of 7.2 – 7.6. Dose rates Litres Gallons 1,000 220 1,500 330 – 92 – To increase calcium hardness by 10mg/l 15g 23g To increase calcium hardness by 25mg/l 38g 56g
Protects shell and spa plant equipment.
Easy to use.
Fast acting.
Keep up to date with our latest offers and servicing options
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Keep up to date with our latest offers and servicing options
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Unit 9, Vulcan Works, Floors Street
Johnstone, PA5 8PA
Unit 9, Vulcan Works, Floors Street, Johnstone, PA5 8QS
Heavenly Hot Tubs is a trading style of Heavenly Hot Tubs Group Ltd, Unit 9, Vulcan Works, Floors Street, PA5 8QS Reg. No. SC646725 and is authorised and regulated by the Financial Conduct Authority, FRN: 942123. Heavenly Hot Tubs is a credit broker and not a lender, and offers credit facilities from a panel of lenders. Credit is subject to status and affordability
Heavenly Hot Tubs is a trading style of Heavenly Hot Tubs Group Ltd, Unit 9, Vulcan Works, Floors Street, PA5 8QS Reg. No. SC646725 and is authorised and regulated by the Financial Conduct Authority, FRN: 942123. Heavenly Hot Tubs is a credit broker and not a lender, and offers credit facilities from a panel of lenders. Credit is subject to status and affordability
To purchase online:
1. Proceed to checkout and complete your order.
2. We’ll call you within 48 hours to schedule everything.
3. If you need installation, we’ll discuss options and arrange a site survey over the phone.
4. Your item(s) will be delivered hassle-free on your chosen date.
5. If you’ve opted for installation, this will be completed on the day of delivery.
Alternatively you can come visit one of ourshowrooms , call us or request a call back and we can arrange everything there and then including finance if desired.
If you’d like to have your hot tub installed, our expert engineers are available to get everything set up for you. Ahead of your installation date, we’ll arrange a site survey (usually completed by phone or video call) to ensure we can access your garden space and allow for a smooth installation.
Take a look at our customer installation reviews for examples of our recent work.
For some hot tubs, a Crane/Hiab may be required to move them into position depending on your access. This service comes at an additional charge and must be arranged with an external company. If you’re unsure where to start or would like a recommendation, our team will be happy to assist.