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keeping them running
Page 65
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by Trevor Longcroft
oday, many engineers accept at engine coolant should be correctly balanced mixture of rater, anti-freeze and corrosion hibitor. and though some spelt/ the particular anti-freeze nd inhibitor to use, many have o qualms about using mains rater to complete the mixture. Depending on location, tap rater contains a number of laments which are deposited in le form of scale when the water ecomes hot; the scale settles in ma fine bore tubes of the radiator id can eventually block them, use overheating and possibly igine seizure. Further, scale arms on the cooling surfaces F the cylinder liners and impairs le efficiency of the cooling (stem.
In order to avoid this uild-up and extend radiator service life one simply needs to use purified or distilled water. The latter can be bought in varying quantities while the former can be obtained from a normal mains water supply which has previously been fitted with a purifying system.
Elgastat Accessories Ltd, Lane End. Bucks, produces a cartridge of synthetic resins which deionizes (purifies) the mains water as it passes through. A meter on the cartridge indicates when the resin is exhausted and it is simply replaced with a fresh cartridge: the exhausted one is returned to Elgastat and is replaced within 48 hours.
Apart from engine cooling systems the purified water, which costs about lp per gallon, is equally suitable for topping up vehicle batteries.