43. When siting a trout farm the producer must take all reasonable steps to ensure that an adequate water supply of suitable quality will be available for all fish at all times.
44. Water supplies for trout hatcheries, whether ground water or not, must be suitable for the fish in terms of the temperature, dissolved gas content, pH, chemical quality, sediment levels and levels of pathogens and parasites.
45. The design of farm facilities should take account of welfare issues and, in particular, ensure that injury is not caused to the fish.
46. Outdoor holding facilities should adequately protect the fish from predators .
47. The requirements of trout for environmental stimulation should be investigated.
48. Automatic equipment such as water pumps and aeration systems must be monitored and incorporate alarms to indicate malfunction. Automatic feeding systems must be properly maintained and should be inspected daily.
49. Hatcheries, equipment and tanks, and further growth facilities should be properly cleaned and disinfected between batches of eggs or fish. Earth ponds should be emptied of fish and water and left fallow at suitable intervals.
50. An adequate method for daily removal of dead and moribund fish from tanks, ponds and raceways must be available (see also paragraph 64).
51. Fish should only be kept in the outflow channel if the quality of the water there is high.