Entrained air or Check on coagulant coagulant dosing. Check air release on filters; air leaks on suction side of pump. Water has bad High combined Check combined Keep testing pool taste or smell chlorine chlorine levels and type; regularly until disinfectant – irritates eyes and be prepared to dilute or content is back to throat correct free chlorine recommended level. level. pH wrong Check and correct if necessary. Skin and eye pH level wrong Check dosage and irritation adjust. Over/under disinfected Algae Strong sunlight, Superdisinfect. Without no disinfectant, bathers, brush or poor hydraulics vacuum off algae, increase residual level, backwash. Stained or Water imbalance Check calcium levels. corroded fixtures Inadequate Clean all fixtures cleaning regularly. Iron salts coming Check pH, water out of solution balance, coagulation. Formulation of rust Hair clips or Remove all items from If pipe work or equipment stains metal fastenings pool. is involved, report it immediately to Business Services, Property. Coloured water Dosage wrong Check dosage and Contact CS Procurement adjust. and Contracts(see Build up of Appendix 10). cyanuric acid Test for cyanuric acid should be carried out. Hard scale on Hardness salts Check and where surfaces coming out of necessary correct pH, solution alkalinity, hardness. Excessive Temperature Adjust difference to 1 or condensation difference - 2 degrees C. pool/air Strong chlorinous 1. Combined 1. Reduce bather load smell, irritation of chlorine too high and ensure pre-swim eyes and upper because of hygiene is observed bather pollution
Entrained air or coagulant Check on coagulant dosing. Check air release on filters; air leaks on suction side of pump. Water has bad taste or smell – irritates eyes and throat High combined chlorine pH wrong Check combined chlorine levels and type; be prepared to dilute or correct free chlorine level. Check and correct if necessary. Keep testing pool regularly until disinfectant content is back to recommended level. Skin and eye irritation pH level wrong Over/under disinfected Check dosage and adjust. Algae Strong sunlight, no disinfectant, poor hydraulics Superdisinfect. Without bathers, brush or vacuum off algae, increase residual level, backwash. Stained or corroded fixtures Water imbalance Inadequate cleaning Iron salts coming out of solution Check calcium levels. Clean all fixtures regularly. Check pH, water balance, coagulation. Formulation of rust stains Hair clips or metal fastenings Remove all items from pool. If pipe work or equipment is involved, report it immediately to Business Services, Property. Coloured water Dosage wrong Build up of cyanuric acid Check dosage and adjust. Test for cyanuric acid should be carried out. Contact CS Procurement and Contracts(see Appendix 10). Hard scale on surfaces Hardness salts coming out of solution Check and where necessary correct pH, alkalinity, hardness. Excessive condensation Temperature difference - pool/air Adjust difference to 1 or 2 degrees C. Strong chlorinous smell, irritation of eyes and upper 1. Combined chlorine too high because of bather pollution 1. Reduce bather load and ensure pre-swim hygiene is observed
swimmingpoolsmanagement_Feb2017.docx