Example sentences of "water from time to " in BNC.

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1 Every conventional wet system takes in small amounts of fresh water from time to time , and these introduce a fresh supply of mineral salts , which build up as scale deposits in the boiler and the system pipework , as well as fresh oxygen , which aids further corrosion .
2 The system takes in small amounts of fresh water from time to time , and these introduce a fresh supply of mineral salts , which build up as scale deposits in the boiler and within the pipework .
3 The soil should be kept moist , but never saturated , by sprinkling it gently with water from time to time .
4 Bring slowly to the boil and simmer for 5–6 hours topping up the saucepan with boiling water from time to time .
5 I.e. you are met by one or two leading comrades of the commune and taken into a biggish reception room with tables , cigarettes and cups of tea ( these are big cups with lids , in which the tea is brewed — and girls in pigtails normally come round and replenish your cup with hot water from time to time ) .
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