101 pages for “cat=approfondimenti&q=q%3Dcan%2Bpump%2Bq%2Bq%2B3dq%2B2bq%2Bswimming%2Bpool”
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… the design, construction and management of water treatment systems for public swimming pools supplied with drinking water. It introduces the classification into type 1, 2 and 3 of UNI EN 15288-1; the pool water requirements remain those of the State-Regions Ag …
Also in: Classification of swimming pools · Circulation and filtration · Water requirements and checks · Physical treatment
Two types of water leave swimming pools, both public and private: water from emptying and renewing the pool and water from filter backwashing. Before discharge they must comply with the limits of Italian Legislative Decree 152/2006 (D.Lgs. 152/2006): chlorine, …
Also in: Private swimming pools too · What water leaves a swimming pool · How the dechlorinating agent is dosed · Chlorine limits at discharge
Pool water is in contact with the skin and is partly swallowed: it must have characteristics similar to those of drinking water, checked at every stage, from filling to discharge. Free chlorine coexists with the combined chlorine produced by bathers and, if tr …
Also in: Physical treatment · Chlorine and combined chlorine · Summary table · Alternatives to chlorine
… water; drift eliminators always in good working order. Cooling towers → Swimming pools and whirlpool baths Free chlorine in the pool 0.7 – 1.5 mg/l and pH 7.0 – 7.6, dosed automatically and continuously, with pumps and disinfection running 24 hours a day. In c …
Also in: Environments at risk · Priority buildings · The risk control protocol · Disinfection methods (Annex 13)
… the truly disinfecting share varies considerably from one water to another. Swimming pools A stable pH close to 7.2 – 7.4 provides, for the same amount of chlorine dosed, a greater quantity of hypochlorous acid. Sodium hypochlorite contains sodium hydroxide, w …
Also in: Measurement problems · pH control systems
Domestic hot water Heating systems of hotels, hospitals, care homes and swimming pools, where hot water circulates continuously and the risk of Legionella is high. Legionella control → Drinking water Water storage tanks of large public installations and treatm …
Also in: Dosing and measurement · Stabilised or generated on site · How it is generated on site
… Well water Analysis and disinfection Chlorine measurement Systems Insight → Swimming pools Private swimming pools pH and disinfectants Redox, cells and DPD Insight → Swimming pools · Regulations Pools for collective use UNI 10637:2024 Closed cell and DPD Insig …
Priming fills the suction tube and the pump head with chemical. It is carried out at first start-up, after a long shutdown and whenever air has entered the circuit. Dosing pumps → 1 Connect the tubes Suction, delivery and purge tubes connected, with the purge …
Also in: Why the pump does not dose · Correct installation · Installation mistakes to avoid
Dosing pumps are used to dose chemicals: for each chemical, the table shows the resistance of the materials of pump heads, valves, fittings, diaphragms, seals and tubing, so that the most suitable configuration can be chosen for the liquid to be dosed. 490 che …
Also in: Materials and their use
… or in-line on the pipe. 2 Dosing The controller drives one or more dosing pumps, which inject the disinfectant directly into the storage tank or, where there is none, into the pipe. 3 Contact time For chlorine to disinfect the water, a contact time suited to t …
Also in: Disinfection systems · Water analysis · How to disinfect well water · The closed amperometric cell
… they act by oxidation and are maintained with a measurable residual, which can be controlled continuously with Redox or with an amperometric cell. Chlorine loses effectiveness above pH 7.5 – 8; bromine remains effective at higher pH. Non-oxidising biocides Org …
Also in: Technical terms · Cycles of concentration
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