Hopefully everyone is aware that there has been a hose-pipe ban since Friday 11th July. See https://www.southernwater.co.uk/locations/hampshire/?zone-id=14 There are exceptions, e.g. “you’re growing edible produce for personal consumption and watering with a watering can is not reasonably practicable. For example, due to accessibility needs or the size of the plot.” You may apply for approval to use a hosepipe to water newly laid turf for 28 days.