COVID-19 UPDATE Our shop/showroom is now back open but we ask that you call before visiting. Online sales are being processed as normal but please be aware that shipping couriers are very short staffed at the moment so please be patient if your parcel is slightly late. Contact us on 0115 9442211
The ideal spa calcium hardness levels are between 100 – 200 mg/l (ppm), prompting ‘balanced’ water and protection of spa plant equipment. Test the calcium hardness level of the spa water and if it is below 100mg/l (ppm) use Hardness Increaser to raise the level.