Roger Russell Plumbing, Combiation Boilers.

Specifications / water analysis

Specifications

Water Analysis is used to identify central heating problems caused by system water contamination due to corrosion etc 2001.

A central heating system combines all the elements needed for scale and sludge attack. Hard water leads to lime scale formation and boiler noise whilst the presence of mixed metals provides ideal conditions for corrosion. Mechanical components could fail it the system water is not properly maintained. Boiler noise could be due to scale and corrosion deposits which can accumulate in central heating systems and boilers causing noise and thermal shock which, if left unchecked could cause stress to the boiler heat-exchange. In extreme cases the heat-exchange will leak water and will need to be replaced.

Sludge, black and red oxide commonly cause seizure of pumps, thermostatic radiator valves and motorised valves in untreated central heating systems. This can cause cold spots in the middle bottom of radiators and hydrogen gas to collect in the top of the radiators requiring, frequent venting. The presence of black, ferrous iron oxide (Fe/3 0/4), known as magnetite, shows that the system has suffered from corrosion. Red oxide shows the system is suffering from corrosion. High concentrations of chloride will accelerate levels of corrosion causing localised pitting of pipes and radiators leading to pin-hole leaks. Contamination of flux residues would suggest that the system was not flushed after installation in accordance with the British Standard 7593:1992, which is a recognised good practice. A depleted level of water hardness in the system water, as compared with the mains hard water, indicates that lime-scale has been deposited in the boiler reducing its efficiency.

Water analysis can show the Chloride of untreated system water. 50% higher than mains water indicates flux contamination, treated system water or mains hard water. PH less than 5.0 or greater than 8.5 is detrimental to aluminium. Dissolved Copper concentration of 0.3mg/l more than supply water means plating out of copper on to mild steel or aluminium is likely, which can cause pin-hole leaks if left untreated. Soluble Iron caused from corrosion will generate hydrogen gas. To ensure full protection from corrosion and scale formation use Sentinel X100, concentration should be greater than 1%.

Click on any of the subjects below to view the relevent information sheets.

1: Part L, New Government regulations. 2: Condensing Boilers. 3: Combination Boilers. 4: Benchmark Logbook. 5: Powerflushing, why? 6: Water Analysis. 7: Performance Testing. 8: Quality Mark system. 9: Domestic Fire Sprinklers. Back to Rogers' Home Page

Contact Roger

For more information please call
+44(0)1223 843230
or email R.J.H.C@tesco.net

Roger Russell
Specifications / water analysis	Specifications
Water Analysis is used to identify central heating problems caused by system water contamination due to corrosion etc 2001. A central heating system combines all the elements needed for scale and sludge attack. Hard water leads to lime scale formation and boiler noise whilst the presence of mixed metals provides ideal conditions for corrosion. Mechanical components could fail it the system water is not properly maintained. Boiler noise could be due to scale and corrosion deposits which can accumulate in central heating systems and boilers causing noise and thermal shock which, if left unchecked could cause stress to the boiler heat-exchange. In extreme cases the heat-exchange will leak water and will need to be replaced. Sludge, black and red oxide commonly cause seizure of pumps, thermostatic radiator valves and motorised valves in untreated central heating systems. This can cause cold spots in the middle bottom of radiators and hydrogen gas to collect in the top of the radiators requiring, frequent venting. The presence of black, ferrous iron oxide (Fe/3 0/4), known as magnetite, shows that the system has suffered from corrosion. Red oxide shows the system is suffering from corrosion. High concentrations of chloride will accelerate levels of corrosion causing localised pitting of pipes and radiators leading to pin-hole leaks. Contamination of flux residues would suggest that the system was not flushed after installation in accordance with the British Standard 7593:1992, which is a recognised good practice. A depleted level of water hardness in the system water, as compared with the mains hard water, indicates that lime-scale has been deposited in the boiler reducing its efficiency. Water analysis can show the Chloride of untreated system water. 50% higher than mains water indicates flux contamination, treated system water or mains hard water. PH less than 5.0 or greater than 8.5 is detrimental to aluminium. Dissolved Copper concentration of 0.3mg/l more than supply water means plating out of copper on to mild steel or aluminium is likely, which can cause pin-hole leaks if left untreated. Soluble Iron caused from corrosion will generate hydrogen gas. To ensure full protection from corrosion and scale formation use Sentinel X100, concentration should be greater than 1%.	Click on any of the subjects below to view the relevent information sheets. 1: Part L, New Government regulations. 2: Condensing Boilers. 3: Combination Boilers. 4: Benchmark Logbook. 5: Powerflushing, why? 6: Water Analysis. 7: Performance Testing. 8: Quality Mark system. 9: Domestic Fire Sprinklers. Back to Rogers' Home Page Contact Roger For more information please call +44(0)1223 843230 or email R.J.H.C@tesco.net
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