36J-300 Seriesthe equipment. We recommend you consult your authorized Jacuzzidealer for guidance before attempting to restart your spa under theseconditions.13.0 water Quality maintenanceTo decrease the risk of contracting a waterborne illness (e.g. an infection,bacteria or virus) and/or respiratory ailments , maintain water qualitywithin specified limits. This will enhance your enjoyment and prolongthe life of the hot tub’s equipment. Doing so requires regular attentionbecause the water chemistry involved is a balance of several factors.Procrastination in regard to water maintenance will result in poor andpotentially unhealthful conditions for soaking and even damage to yourhot tub investment. For specific guidance on maintaining water quality,consult your Authorized Jacuzzi dealer who can recommend appropriatechemical products for sanitizing and maintaining your hot tub.warnInG: FaIlure To maInTaIn waTer QualITYwIll:Increase risk of contracting a waterborne illness (e.g. an•infection bacteria or virus) and/or respiratory ailments.Damage the equipment, components and spa shell, which•are not covered under the hot tub’s warranty.!CauTIon: Never store hot tub chemicals inside the hot tub’sequipment bay. The equipment bay may reach elevated tempera-tures, this is where high voltage electronic devices are located. Thisarea is not intended for storage of any kind.13.1 pH ControlpH is a measure of relative acidity or alkalinity of water and is measuredon a scale of 0 to 14. The midpoint of 7 is said to be neutral, above whichis alkaline and below which is acidic. In spa water, it is very important tomaintain a slightly alkaline condition of 7.4 to 7.6 pH. Problems becomeproportionately severe the further outside of this range the water gets.A low pH will be corrosive to metals in the spa equipment. A high pH willcause minerals to deposit on the interior surface (scaling). In addition,the ability of the sanitation agents to keep the spa clean is severelyaffected as the pH moves beyond the ideal range. That is why almost allspa water test kits contain a measure for pH as well as the sanitizer.36